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New life in dead star (article on SN 1987A)

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18 years 7 months ago #31041 by Seanie_Morris
New life in dead star (article on SN 1987A) was created by Seanie_Morris
Seems that SN1987A is still producing surprises. The following is copied from cnn.com...


Newly detected dust found around the burst remains of a dead star could help reveal how planets and stars formed and how life began.

About 160,000 years ago, a star 20 times more massive than our sun erupted in a fiery explosion called a supernova. The star was located in the Large Magellanic Cloud, a nearby dwarf galaxy. In 1987, the first light from that catastrophic event reached Earth and for several months, the supernova, dubbed SN 1987A, blazed as brightly as 100 million suns before fading again.

Now, nearly two decades later, astronomers have detected dust particles around the supernova that they think formed before the star exploded. The new finding is the first evidence that star dust can survive a supernova explosion. It is also providing a rare glimpse into a process called "sputtering," in which dust is eroded by interactions with superheated gas.

"Supernova 1987A is changing right before our eyes," said Eli Dwek, a cosmic dust expert at NASA Goddard Space Flight Center in Maryland who was involved in the finding. "What we are seeing is a milestone in the evolution of a supernova."
Cosmic building blocks

Finer than grains of beach sand, stellar dust is a constant source of frustration for astronomers because it can obscure observations from distant stars. Yet the troublesome dust is also a prime ingredient in the construction of planets and of all living things. The dust is made in the fiery furnaces of stars as they burn and is scattered across space either by stellar winds or by supernova explosions.

Despite its importance, scientists still know very little about star dust. How much dust does a star produce throughout its lifetime? How much survives a star's death? And how do rings of dust coalesce to form stars and planets?

1987A's newly detected stardust, found using an infrared telescope at the Gemini South Observatory in Chile, could help astronomers answer these questions. The dust particles are intermixed with superheated, X-ray emitting gas and found within an equatorial ring around SN 1987A. About a light-year across, the ring of gas and dust is expanding very slowly.

This suggests that the ring was created about 600,000 years before the star exploded, the researchers say. It is therefore unlikely that the ring was created by a supernova blast during the star's death, but rather by stellar winds when the star was still alive.
Made visible

The ring of dust and gas remained invisible for nearly twenty years until shockwaves from the supernova blast caught up with it. As the shockwaves expanded, they passed through the ring, heating up its gas and normally cool dust until they glowed in the infrared.

"This much was expected," said study team member Patrice Bouchet of the Observatoire de Paris. "The collision between the ejecta of supernova 1987A and the equatorial ring was predicted to occur sometime in the interval of 1995 to 2007, and it is now underway."

What was surprising, however, was the composition of the dust, which followup observations with NASA's Spitzer Space Telescope revealed to be almost pure silicate. Also, far less dust than expected was detected. A star as massive as the one that created SN 1987A was thought to produce much more dust.

The dearth of dust could mean that shockwaves from the supernova blast destroyed more dust than originally thought. This could have broad implications for determining dust origins throughout the universe if confirmed, the researchers say.

A spate of new infrared, optical and X-ray observations of SN 1987A are now planned to follow up on the new findings.

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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18 years 7 months ago #31044 by BrianOHalloran
Replied by BrianOHalloran on topic Re: New life in dead star (article on SN 1987A)
Nice report - it's funny to see someone you know being quoted (Eli Dwek is a collaborator of mine on Spitzer work)!

On a side note, I'm off tomorrow to get Jack Schmitt's autograph at the Air and Space Museum in DC :wink:

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18 years 7 months ago #31052 by JohnMurphy
Replied by JohnMurphy on topic Re: New life in dead star (article on SN 1987A)
Read an article on this on Space.com recently - interesting stuff.

On a side note, I'm off tomorrow to get Jack Schmitt's autograph at the Air and Space Museum in DC


Brian - I wouldn't mind getting a copy if your successful - Scan it and post it if you do - cheers! It's sad to think that there are only nine men still alive that have moonwalked and time is running out. Jack was Apollo 17 wasn't he? Ask him to sign his full name Jack Harrison Schmitt "when you hear the voice of God over your shoulder it gets your attention". Is he still doing geology?

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos

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18 years 6 months ago #31131 by BrianOHalloran
Replied by BrianOHalloran on topic Re: New life in dead star (article on SN 1987A)

On a side note, I'm off tomorrow to get Jack Schmitt's autograph at the Air and Space Museum in DC


Brian - I wouldn't mind getting a copy if your successful - Scan it and post it if you do - cheers! It's sad to think that there are only nine men still alive that have moonwalked and time is running out. Jack was Apollo 17 wasn't he? Ask him to sign his full name Jack Harrison Schmitt "when you hear the voice of God over your shoulder it gets your attention". Is he still doing geology?


Hi John.

Only saw your message now - I got it! Unlike others (Dave Scott, hang your head in shame), Jack personalised it. That book now has pride of place! I'll scan it for you and send it to you. Jack was on 17 - he looks well for a 71 year old, and is keeping busy. He's mostly into advocacy for lunar exploration these days, both publicly and privately funded. I think he quit being a fulltime geologist when he became a senator back in 1976.

Very nice guy, by the way - was glad to pose for a photo with myself and the missus. (I have to admit, I was a bit awestruck). On the way out later on, we passed by him and he smiled and winked at us. That was rather cool ;)

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18 years 6 months ago #31226 by JohnMurphy
Replied by JohnMurphy on topic Re: New life in dead star (article on SN 1987A)
Brian,

Great! Glad to see Jack didn't dissapoint. He was always one of my favourites - a bit more feet on the ground (if you can say that about a moonwalker). He got so excited on the moon Nasa almost threw a fit.

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos

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  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '531'131μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '9'129μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '28'128μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '35'137μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '514'128μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '22'126μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '18'127μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '29'128μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '27'132μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '513'153μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '517'135μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '3'190μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '39'127μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '33'124μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '2'122μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '40'127μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '30'122μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '45'126μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '46'124μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SELECT * FROM `tifas_kunena_categories` WHERE `id` = '528'126μs7.16KB/libraries/kunena/src/Tables/TableKunenaCategories.php:295Copy
  • SHOW FULL COLUMNS FROM `tifas_kunena_topics`396μs2.33KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:625Copy
  • SELECT * FROM `tifas_kunena_topics` WHERE `id` = '31041'156μs12.06KB/libraries/kunena/src/Tables/TableKunenaTopics.php:223Copy
  • SHOW FULL COLUMNS FROM `tifas_kunena_messages`415μs2.2KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:625Copy
  • SELECT m.*,t.message FROM `tifas_kunena_messages` AS `m` INNER JOIN `tifas_kunena_messages_text` AS `t` ON `m`.`id` = `t`.`mesid` WHERE `m`.`id` = 31041317μs3.78KB/libraries/kunena/src/Tables/TableKunenaMessages.php:216Copy
  • SELECT COUNT(*) FROM `tifas_kunena_messages` AS `a` WHERE `thread` = '31041' AND `a`.`hold` IN (0)222μs856B/libraries/kunena/src/Database/Object/KunenaFinder.php:278Copy
  • SELECT a.id FROM `tifas_kunena_messages` AS `a` WHERE `thread` = '31041' AND `a`.`hold` IN (0) ORDER BY a.`time` ASC LIMIT 6173μs920B/libraries/kunena/src/Database/Object/KunenaFinder.php:234Copy
  • SELECT m.*, t.message FROM `tifas_kunena_messages` AS `m` INNER JOIN `tifas_kunena_messages_text` AS `t` ON m.id = t.mesid WHERE `m`.`id` IN (31044,31052,31131,31226)273μs3.83KB/libraries/kunena/src/Forum/Message/KunenaMessageHelper.php:120Copy
  • SELECT * FROM `tifas_kunena_thankyou` WHERE `postid` IN (31041,31044,31052,31131,31226)113μs1008B/libraries/kunena/src/Forum/Message/Thankyou/KunenaMessageThankyouHelper.php:116Copy
  • SELECT u.name, u.username, u.email, u.block AS blocked, u.registerDate, u.lastvisitDate, ku.*, u.id AS userid FROM `tifas_users` AS `u` LEFT JOIN `tifas_kunena_users` AS `ku` ON `u`.`id` = `ku`.`userid` WHERE `u`.`id` IN (75,154,680)357μs36.03KB/libraries/kunena/src/User/KunenaUserHelper.php:247Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31041,31044,31052,31131,31226)120μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_user_topics` WHERE (`user_id` = '0') AND (`topic_id` IN (31041))103μs1.89KB/libraries/kunena/src/Forum/Topic/User/KunenaTopicUserHelper.php:159Copy
  • SHOW FULL COLUMNS FROM `tifas_kunena_user_topics`326μs2.05KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:625Copy
  • SELECT `code`,`location` FROM `tifas_kunena_smileys`85μs1.25KB/libraries/kunena/src/BBCode/KunenaBBCode.php:1122Copy
  • UPDATE `tifas_kunena_topics` SET `hits` = (`hits` + 1) WHERE `id` = '31041'659μs48B/libraries/src/Table/Table.php:1325Copy
  • SELECT `m`.`id`,`m`.`title`,`m`.`module`,`m`.`position`,`m`.`content`,`m`.`showtitle`,`m`.`params`,`mm`.`menuid` FROM `tifas_modules` AS `m` LEFT JOIN `tifas_modules_menu` AS `mm` ON `mm`.`moduleid` = `m`.`id` LEFT JOIN `tifas_extensions` AS `e` ON `e`.`element` = `m`.`module` AND `e`.`client_id` = `m`.`client_id` WHERE ( ( (`m`.`published` = 1 AND `e`.`enabled` = 1 AND `m`.`client_id` = :clientId AND `m`.`access` IN (:preparedArray1)) AND (`m`.`publish_up` IS NULL OR `m`.`publish_up` <= :publishUp)) AND (`m`.`publish_down` IS NULL OR `m`.`publish_down` >= :publishDown)) AND (`mm`.`menuid` = :itemId OR `mm`.`menuid` <= 0) ORDER BY `m`.`position`,`m`.`ordering`721μs2.17KBParams/libraries/src/Cache/Controller/CallbackController.php:51Copy
  • SHOW FULL COLUMNS FROM `tifas_kunena_polls`546μs1.95KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:625Copy
  • SELECT * FROM `tifas_kunena_ranks`115μs1.8KB/libraries/kunena/src/User/KunenaUser.php:1629Copy
  • SELECT userid, MAX(time) AS time FROM `tifas_session` WHERE `client_id` = 0 AND `userid` > 0 AND `time` > '1740725646' GROUP BY `userid` ORDER BY `time` DESC188μs896B/libraries/kunena/src/User/KunenaUserHelper.php:544Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31041)711μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31041)108μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31044)124μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31044)97μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT m.id, mm.hold, m.catid AS category_id, m.thread AS topic_id, SUM(mm.time<m.time) AS before_count, SUM(mm.time>m.time) AS after_count FROM `tifas_kunena_messages` AS `m` INNER JOIN `tifas_kunena_messages` AS `mm` ON `m`.`thread` = `mm`.`thread` WHERE `m`.`id` IN (31044) GROUP BY `m`.`id`,`mm`.`hold`232μs1.13KB/libraries/kunena/src/Forum/Message/KunenaMessageHelper.php:539Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31052)135μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31052)114μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT m.id, mm.hold, m.catid AS category_id, m.thread AS topic_id, SUM(mm.time<m.time) AS before_count, SUM(mm.time>m.time) AS after_count FROM `tifas_kunena_messages` AS `m` INNER JOIN `tifas_kunena_messages` AS `mm` ON `m`.`thread` = `mm`.`thread` WHERE `m`.`id` IN (31052) GROUP BY `m`.`id`,`mm`.`hold`230μs1.13KB/libraries/kunena/src/Forum/Message/KunenaMessageHelper.php:539Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31131)112μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31131)247μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT m.id, mm.hold, m.catid AS category_id, m.thread AS topic_id, SUM(mm.time<m.time) AS before_count, SUM(mm.time>m.time) AS after_count FROM `tifas_kunena_messages` AS `m` INNER JOIN `tifas_kunena_messages` AS `mm` ON `m`.`thread` = `mm`.`thread` WHERE `m`.`id` IN (31131) GROUP BY `m`.`id`,`mm`.`hold`385μs1.13KB/libraries/kunena/src/Forum/Message/KunenaMessageHelper.php:539Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31226)107μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT * FROM `tifas_kunena_attachments` WHERE `mesid` IN (31226)94μs2.08KB/libraries/kunena/src/Attachment/KunenaAttachmentHelper.php:234Copy
  • SELECT DISTINCT a.id, a.title, a.name, a.checked_out, a.checked_out_time, a.note, a.state, a.access, a.created_time, a.created_user_id, a.ordering, a.language, a.fieldparams, a.params, a.type, a.default_value, a.context, a.group_id, a.label, a.description, a.required, a.only_use_in_subform,l.title AS language_title, l.image AS language_image,uc.name AS editor,ag.title AS access_level,ua.name AS author_name,g.title AS group_title, g.access as group_access, g.state AS group_state, g.note as group_note FROM tifas_fields AS a LEFT JOIN `tifas_languages` AS l ON l.lang_code = a.language LEFT JOIN tifas_users AS uc ON uc.id=a.checked_out LEFT JOIN tifas_viewlevels AS ag ON ag.id = a.access LEFT JOIN tifas_users AS ua ON ua.id = a.created_user_id LEFT JOIN tifas_fields_groups AS g ON g.id = a.group_id WHERE ( (`a`.`context` = :context AND `a`.`access` IN (:preparedArray1)) AND (`a`.`group_id` = 0 OR `g`.`access` IN (:preparedArray2)) AND `a`.`state` = :state) AND (`a`.`group_id` = 0 OR `g`.`state` = :gstate) AND `a`.`only_use_in_subform` = :only_use_in_subform ORDER BY a.ordering ASC609μs5.28KBParams/libraries/src/MVC/Model/BaseDatabaseModel.php:166Copy
  • SELECT * FROM `tifas_kunena_announcement` WHERE `published` = 1 AND (`publish_up` = '1000-01-01 00:00:00' OR `publish_up` <= '2025-02-28 07:24:06') AND (`publish_down` ='1000-01-01 00:00:00' OR `publish_down` >= '2025-02-28 07:24:06') ORDER BY `id` DESC LIMIT 1112μs2.05KB/libraries/kunena/src/Forum/Announcement/KunenaAnnouncementHelper.php:145Copy
  • SELECT `params` FROM `tifas_comprofiler_plugin` WHERE `id` = 187μs856BCopy
  • SELECT *, CONCAT_WS( "/", `folder`, `element` ) AS lookup FROM `tifas_comprofiler_plugin` WHERE `published` = 1 AND `viewaccesslevel` IN (1) AND `type` = 'user' ORDER BY `ordering`256μs18.36KBCopy
  • SHOW FULL COLUMNS FROM `tifas_users`371μs2.2KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:625Copy
  • SELECT f.* FROM tifas_comprofiler_fields f INNER JOIN tifas_comprofiler_tabs AS t ON (f.tabid = t.tabid) WHERE f.published = 1 ORDER BY t.position, t.ordering, f.ordering833μs4.86KBCopy
  • SELECT `id` FROM `tifas_menu` WHERE ( `link` = 'index.php?option=com_comprofiler&view=userprofile' OR `link` = 'index.php?option=com_comprofiler&task=userprofile' OR `link` = 'index.php?option=com_comprofiler' ) AND `published` = 1 AND `access` IN ( 1 ) AND `language` IN ( 'en-GB', '*', '' ) AND `client_id` = 0210μs856BCopy
  • SELECT `id` FROM `tifas_menu` WHERE ( `link` LIKE 'index.php?option=com_comprofiler&view=pluginclass&plugin=cbconnect%' OR `link` LIKE 'index.php?option=com_comprofiler&task=pluginclass&plugin=cbconnect%' ) AND `published` = 1 AND `access` IN ( 1 ) AND `language` IN ( 'en-GB', '*', '' ) AND `client_id` = 0220μs840BCopy
  • SELECT *, CONCAT_WS( "/", `folder`, `element` ) AS lookup FROM `tifas_comprofiler_plugin` WHERE `published` = 1 AND `viewaccesslevel` IN (1) ORDER BY `ordering`189μs18.39KBCopy
  • SELECT `id` FROM `tifas_menu` WHERE ( `link` LIKE 'index.php?option=com_comprofiler&view=login%' OR `link` LIKE 'index.php?option=com_comprofiler&task=login%' ) AND `published` = 1 AND `access` IN ( 1 ) AND `language` IN ( 'en-GB', '*', '' ) AND `client_id` = 0235μs856BCopy
  • SELECT `id` FROM `tifas_menu` WHERE ( `link` LIKE 'index.php?option=com_comprofiler&view=lostpassword%' OR `link` LIKE 'index.php?option=com_comprofiler&task=lostpassword%' ) AND `published` = 1 AND `access` IN ( 1 ) AND `language` IN ( 'en-GB', '*', '' ) AND `client_id` = 0213μs856BCopy
  • SELECT `id` FROM `tifas_menu` WHERE ( `link` LIKE 'index.php?option=com_comprofiler&view=registers%' OR `link` LIKE 'index.php?option=com_comprofiler&task=registers%' ) AND `published` = 1 AND `access` IN ( 1 ) AND `language` IN ( 'en-GB', '*', '' ) AND `client_id` = 0200μs856BCopy
  • SHOW FULL COLUMNS FROM `tifas_jev_users`370μs2.2KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:625Copy
  • SELECT `c`.`id`,`c`.`asset_id`,`c`.`access`,`c`.`alias`,`c`.`checked_out`,`c`.`checked_out_time`,`c`.`created_time`,`c`.`created_user_id`,`c`.`description`,`c`.`extension`,`c`.`hits`,`c`.`language`,`c`.`level`,`c`.`lft`,`c`.`metadata`,`c`.`metadesc`,`c`.`metakey`,`c`.`modified_time`,`c`.`note`,`c`.`params`,`c`.`parent_id`,`c`.`path`,`c`.`published`,`c`.`rgt`,`c`.`title`,`c`.`modified_user_id`,`c`.`version`, CASE WHEN CHAR_LENGTH(`c`.`alias`) != 0 THEN CONCAT_WS(':', `c`.`id`, `c`.`alias`) ELSE `c`.`id` END as `slug` FROM `tifas_categories` AS `c` WHERE (`c`.`extension` = :extension OR `c`.`extension` = 'system') AND `c`.`access` IN (:preparedArray1) AND `c`.`published` = 1 ORDER BY `c`.`lft`271μs5.16KBParams/libraries/src/Categories/Categories.php:375Copy
  • SELECT c.id FROM tifas_categories AS c WHERE c.access IN (1) AND c.published = 1 AND c.language in ('en-GB','*') AND c.extension = 'com_jevents' ORDER BY c.lft asc185μs904B/components/com_jevents/libraries/dbmodel.php:547Copy
  • SELECT c.id FROM tifas_categories AS c WHERE c.access IN (1) AND c.published = 1 AND c.language in ('en-GB','*') AND c.extension = 'com_jevents' AND ((c.lft>=87 AND c.rgt<=88 )) ORDER BY c.lft asc174μs856B/components/com_jevents/libraries/dbmodel.php:547Copy
  • SELECT ev.ev_id FROM tifas_jevents_repetition as rpt INNER JOIN tifas_jevents_vevent as ev ON rpt.eventid = ev.ev_id INNER JOIN tifas_jevents_icsfile as icsf ON icsf.ics_id=ev.icsid INNER JOIN tifas_jevents_vevdetail as det ON det.evdet_id = rpt.eventdetail_id LEFT JOIN tifas_jevents_rrule as rr ON rr.eventid = rpt.eventid WHERE ev.catid IN(-1,68) AND ev.created >= '2024-09-01 00:00:00' AND ev.created <= '2025-08-27 23:59:59' AND ev.state=1 AND ev.access IN (1) AND icsf.state=1 AND icsf.access IN (1) GROUP BY ev.ev_id ORDER BY ev.created DESC LIMIT 10772μs840B/components/com_jevents/libraries/dbmodel.php:271Copy
  • SELECT rpt.*, ev.*, rr.*, det.*, ev.state as published, ev.created as created , YEAR(rpt.startrepeat) as yup, MONTH(rpt.startrepeat ) as mup, DAYOFMONTH(rpt.startrepeat ) as dup , YEAR(rpt.endrepeat ) as ydn, MONTH(rpt.endrepeat ) as mdn, DAYOFMONTH(rpt.endrepeat ) as ddn , HOUR(rpt.startrepeat) as hup, MINUTE(rpt.startrepeat ) as minup, SECOND(rpt.startrepeat ) as sup , HOUR(rpt.endrepeat ) as hdn, MINUTE(rpt.endrepeat ) as mindn, SECOND(rpt.endrepeat ) as sdn FROM tifas_jevents_repetition as rpt INNER JOIN tifas_jevents_vevent as ev ON rpt.eventid = ev.ev_id INNER JOIN tifas_jevents_icsfile as icsf ON icsf.ics_id=ev.icsid INNER JOIN tifas_jevents_vevdetail as det ON det.evdet_id = rpt.eventdetail_id LEFT JOIN tifas_jevents_rrule as rr ON rr.eventid = rpt.eventid WHERE ev.catid IN(-1,68) AND ev.created >= '2024-09-01 00:00:00' AND ev.created <= '2025-08-27 23:59:59' AND ev.state=1 AND ev.access IN (1) AND icsf.state=1 AND icsf.access IN (1) AND ev.ev_id IN (0) ORDER BY ev.created DESC , rpt.startrepeat ASC275μs21.33KB/components/com_jevents/libraries/dbmodel.php:3274Copy
  • SELECT `name`,`element` FROM `tifas_extensions` WHERE `type` = 'plugin' AND `folder` = 'finder' AND `enabled` = 1261μs1.03KB/administrator/components/com_finder/src/Helper/LanguageHelper.php:134Copy
  • SELECT `title` FROM `tifas_finder_taxonomy` WHERE `parent_id` = 1 AND `state` = 1 AND `access` IN (1)129μs904B/administrator/components/com_finder/src/Indexer/Taxonomy.php:314Copy
  • SELECT * FROM `tifas_banners` WHERE (`reset` <= :date AND `reset` IS NOT NULL) AND (`checked_out` IS NULL OR `checked_out` = :userId)370μs7.89KBParams/administrator/components/com_banners/src/Helper/BannersHelper.php:69Copy
  • SELECT `a`.`id`,`a`.`type`,`a`.`name`,`a`.`clickurl`,`a`.`sticky`,`a`.`cid`,`a`.`description`,`a`.`params`,`a`.`custombannercode`,`a`.`track_impressions`,`cl`.`track_impressions` AS `client_track_impressions` FROM `tifas_banners` AS `a` LEFT JOIN `tifas_banner_clients` AS `cl` ON `cl`.`id` = `a`.`cid` WHERE ( ( (`a`.`state` = 1) AND (`a`.`publish_up` IS NULL OR `a`.`publish_up` <= :nowDate1)) AND (`a`.`publish_down` IS NULL OR `a`.`publish_down` >= :nowDate2)) AND (`a`.`imptotal` = 0 OR `a`.`impmade` < `a`.`imptotal`) AND `a`.`catid` IN (:preparedArray1) ORDER BY `a`.`sticky` DESC, RAND() LIMIT 1487μs2.91KBParams/libraries/src/MVC/Model/BaseDatabaseModel.php:166Copy
  • UPDATE `tifas_banners` SET `impmade` = `impmade` + 1 WHERE `id` IN (:preparedArray1)443μs856BParams/components/com_banners/src/Model/BannersModel.php:315Copy
  • UPDATE `tifas_banner_tracks` SET `count` = `count` + 1 WHERE `track_type` = 1 AND `banner_id` = :id AND `track_date` = :trackDate464μs832BParams/components/com_banners/src/Model/BannersModel.php:352Copy
  • SELECT `a`.`id`,`a`.`asset_id`,`a`.`title`,`a`.`type`,`a`.`execution_rules`,`a`.`state`,`a`.`last_exit_code`,`a`.`locked`,`a`.`last_execution`,`a`.`next_execution`,`a`.`times_executed`,`a`.`times_failed`,`a`.`priority`,`a`.`ordering`,`a`.`note`,`a`.`checked_out`,`a`.`checked_out_time`,`uc`.`name` AS `editor` FROM `tifas_scheduler_tasks` AS `a` LEFT JOIN `tifas_users` AS `uc` ON `uc`.`id` = `a`.`checked_out` WHERE `a`.`state` = :state AND `a`.`next_execution` <= :now ORDER BY `a`.`title` asc189μs4.41KBParams/administrator/components/com_scheduler/src/Model/TasksModel.php:391Copy
  • SELECT `a`.`id`,`a`.`asset_id`,`a`.`title`,`a`.`type`,`a`.`execution_rules`,`a`.`state`,`a`.`last_exit_code`,`a`.`locked`,`a`.`last_execution`,`a`.`next_execution`,`a`.`times_executed`,`a`.`times_failed`,`a`.`priority`,`a`.`ordering`,`a`.`note`,`a`.`checked_out`,`a`.`checked_out_time`,`uc`.`name` AS `editor` FROM `tifas_scheduler_tasks` AS `a` LEFT JOIN `tifas_users` AS `uc` ON `uc`.`id` = `a`.`checked_out` WHERE `a`.`state` = :state AND `a`.`locked` IS NOT NULL ORDER BY `a`.`title` asc170μs4.43KBParams/administrator/components/com_scheduler/src/Model/TasksModel.php:391Copy
  • SHOW TABLES706μs8.82KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:678Copy