# General **URL:** https://forum.astro-colibri.science/c/general/4.md [Latest](https://forum.astro-colibri.science/latest.md) · [Categories](https://forum.astro-colibri.science/categories.md) · [Tags](https://forum.astro-colibri.science/tags.md) --- ## [Welcome to the Astro-COLIBRI forum! 👋](https://forum.astro-colibri.science/t/welcome-to-the-astro-colibri-forum/5)
**Author:** [@system](https://forum.astro-colibri.science/u/system)\ **Replies:** 0\ **Last updated:** [December 22, 2023, 10:46am UTC](https://forum.astro-colibri.science/t/welcome-to-the-astro-colibri-forum/5 "2023-12-22T10:46:53Z")
We are so glad you joined us. Astro-COLIBRI The platform for multi-messenger astrophysics in real-time Here are some things you can do to get started: :speaking\_head: Introduce yourself by adding your picture and in… --- ## [About the General category](https://forum.astro-colibri.science/t/about-the-general-category/3)
**Author:** [@system](https://forum.astro-colibri.science/u/system)\ **Replies:** 0
--- ## [5th Astro-COLIBRI Multi-Messenger Astrophysics Workshop: wrap-up](https://forum.astro-colibri.science/t/5th-astro-colibri-multi-messenger-astrophysics-workshop-wrap-up/577)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [October 18, 2026, 9:49am UTC](https://forum.astro-colibri.science/t/5th-astro-colibri-multi-messenger-astrophysics-workshop-wrap-up/577 "2026-10-18T09:49:18Z")
Last week (October 12–16) we gathered at the Institut Pascal (Paris-Saclay) with researchers from around the world for five days of science, discussion and collaboration. Thank you to everyone who joined us! Talks an… --- ## [AT 2026aabo in M31](https://forum.astro-colibri.science/t/at-2026aabo-in-m31/563)
**Author:** [@christian.buil](https://forum.astro-colibri.science/u/christian.buil)\ **Replies:** 0\ **Last updated:** [September 8, 2026, 8:03am UTC](https://forum.astro-colibri.science/t/at-2026aabo-in-m31/563 "2026-09-08T08:03:42Z")
A spectrum of nova in M31 (AT 2026aabo). Christian Buil --- ## [The Wait is Over: The Rubin Observatory’s 10-Year LSST Has Officially Begun!](https://forum.astro-colibri.science/t/the-wait-is-over-the-rubin-observatory-s-10-year-lsst-has-officially-begun/538)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [June 30, 2026, 4:58pm UTC](https://forum.astro-colibri.science/t/the-wait-is-over-the-rubin-observatory-s-10-year-lsst-has-officially-begun/538 "2026-06-30T16:58:46Z")
We are thrilled to share that the NSF–DOE Vera C. Rubin Observatory has officially commenced its highly anticipated Legacy Survey of Space and Time (LSST) last night. From its vantage point in Chile, this 10-year campai… --- ## [ACME Hands-on Session on Astro-COLIBRI](https://forum.astro-colibri.science/t/acme-hands-on-session-on-astro-colibri/524)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [May 26, 2026, 9:26am UTC](https://forum.astro-colibri.science/t/acme-hands-on-session-on-astro-colibri/524 "2026-05-26T09:26:24Z")
Hi everyone, We are excited to announce that the next hands-on session organized by the ACME project will be dedicated to Astro-COLIBRI! Whether you are new to the platform or looking to optimize your workflow, this se… --- ## [Sudden ionispheric disturbances using vlf](https://forum.astro-colibri.science/t/sudden-ionispheric-disturbances-using-vlf/504)
**Author:** [@lawrencegertig2017](https://forum.astro-colibri.science/u/lawrencegertig2017)\ **Replies:** 1\ **Last updated:** [March 8, 2026, 6:51pm UTC](https://forum.astro-colibri.science/t/sudden-ionispheric-disturbances-using-vlf/504 "2026-03-08T18:51:02Z")
Hi. I wonder if it might be worth considering including sudden ionispheric distubances using very low frequencies (VLF) as pat of the overall multimessenger group. It doesn’t need to be a primary source of study, but as … --- ## [2025: The Year in Review](https://forum.astro-colibri.science/t/2025-the-year-in-review/482)
**Author:** [@system](https://forum.astro-colibri.science/u/system)\ **Replies:** 2\ **Last updated:** [January 1, 2026, 10:41am UTC](https://forum.astro-colibri.science/t/2025-the-year-in-review/482 "2026-01-01T10:41:40Z")
2025's Top Users Most Time Reading User Hours Read @thierrymidavaine 4 @Latge.Cedric 2 @pylechapelain 2 @roger.hellot.astro 2 @FredDJN 2 @jean.paul.astro 1 @christoph 1 @grinch.astrophoto 1… --- ## [The end of O4: gravitational wave observations paused](https://forum.astro-colibri.science/t/the-end-of-o4-gravitational-wave-observations-paused/466)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [November 19, 2025, 9:27am UTC](https://forum.astro-colibri.science/t/the-end-of-o4-gravitational-wave-observations-paused/466 "2025-11-19T09:27:41Z")
The observation run “O4” of the gravitational wave interferometers has come to its end as planned on November 18, 2025. The run has started on May 24th, 2023 and was thus the longest gravitational wave observing period s… --- ## [AT2025acft - long term bright microlensing event](https://forum.astro-colibri.science/t/at2025acft-long-term-bright-microlensing-event/465)
**Author:** [@bhtom](https://forum.astro-colibri.science/u/bhtom)\ **Replies:** 0\ **Last updated:** [November 14, 2025, 5:49pm UTC](https://forum.astro-colibri.science/t/at2025acft-long-term-bright-microlensing-event/465 "2025-11-14T17:49:21Z")
This transient is a microlensing event due to uknown lens. If the lens contains a planet around it, we should be able to detect it in form of a very short (hours-days) anomaly to the overall trend in the light curve. The… --- ## [Astro-COLIBRI at ICRC2025 and the STELLAR event at CERN](https://forum.astro-colibri.science/t/astro-colibri-at-icrc2025-and-the-stellar-event-at-cern/418)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 1\ **Last updated:** [July 22, 2025, 1:40pm UTC](https://forum.astro-colibri.science/t/astro-colibri-at-icrc2025-and-the-stellar-event-at-cern/418 "2025-07-22T13:40:48Z")
This week, the 39th Internation Cosmic Ray Conference is starting in Geneva, Switzerland. It is the main meeting for high-energy astroparticle physics and is taking place every two years. The Astro-COLIBRI team is partic… --- ## [General reading](https://forum.astro-colibri.science/t/general-reading/422)
**Author:** [@lawrencegertig2017](https://forum.astro-colibri.science/u/lawrencegertig2017)\ **Replies:** 1\ **Last updated:** [July 18, 2025, 12:02pm UTC](https://forum.astro-colibri.science/t/general-reading/422 "2025-07-18T12:02:25Z")
Hi all. I wonder if any of you could suggest reading material for a non scientist that covers multi messenger astro physics and the related sub topics (gravitational waves, GRBs, etc). Thank you all in anticipation --- ## [The end of astrophysics as we know it](https://forum.astro-colibri.science/t/the-end-of-astrophysics-as-we-know-it/373)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 2\ **Last updated:** [July 13, 2025, 9:10am UTC](https://forum.astro-colibri.science/t/the-end-of-astrophysics-as-we-know-it/373 "2025-07-13T09:10:00Z")
On April 11 the White House submitted a budget proposal for NASA (known as “passback”). This is a first step in the negitiation process but its contents is extremely worriesome. It certainly goes beyond what anyone could… --- ## [Announcing the 4th Astro-COLIBRI Workshop – October 20-24, 2025](https://forum.astro-colibri.science/t/announcing-the-4th-astro-colibri-workshop-october-20-24-2025/350)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 1\ **Last updated:** [July 1, 2025, 7:45am UTC](https://forum.astro-colibri.science/t/announcing-the-4th-astro-colibri-workshop-october-20-24-2025/350 "2025-07-01T07:45:37Z")
We are excited to announce the 4th Astro-COLIBRI multi-messenger astrophysics workshop, which will take place from October 20 to 24, 2025, at Institut Pascal, Paris-Saclay University (France) . Following the success of … --- ## [ACME Multimessenger Citizen Science: Training Event for Amateur Astronomers](https://forum.astro-colibri.science/t/acme-multimessenger-citizen-science-training-event-for-amateur-astronomers/394)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 5\ **Last updated:** [June 27, 2025, 10:11pm UTC](https://forum.astro-colibri.science/t/acme-multimessenger-citizen-science-training-event-for-amateur-astronomers/394 "2025-06-27T22:11:06Z")
ACME Multimessenger Citizen Science: Training Event for Amateur Astronomers Online, 10th June 2025 Would you like to help search for some of the most extreme astronomical phenomena in the Universe? Multimessenger astro… --- ## [Muons](https://forum.astro-colibri.science/t/muons/407)
**Author:** [@lawrencegertig2017](https://forum.astro-colibri.science/u/lawrencegertig2017)\ **Replies:** 7\ **Last updated:** [June 25, 2025, 3:22pm UTC](https://forum.astro-colibri.science/t/muons/407 "2025-06-25T15:22:13Z")
Hi Im a casual member of the UK Radio Astronomy Association (UKRAA). The sub group I’m tagged to is the group observing muons. I havent bought an observatory yet as I’m still unsure about setting up an observatory. Howe… --- ## [Postdoc position: Multi-messenger astroparticle physics with Astro-COLIBRI](https://forum.astro-colibri.science/t/postdoc-position-multi-messenger-astroparticle-physics-with-astro-colibri/399)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [June 6, 2025, 2:49pm UTC](https://forum.astro-colibri.science/t/postdoc-position-multi-messenger-astroparticle-physics-with-astro-colibri/399 "2025-06-06T14:49:39Z")
Join the Astro-COLIBRI team at CEA Paris-Saclay as a Postdoc in Multi-Messenger Astroparticle Physics working on the Astro-COLIBRI platform! :telescope: Contribute to cutting-edge science with H.E.S.S., CTAO, SVOM & mor… --- ## [Supernova SN2025gjc-ESO515-3](https://forum.astro-colibri.science/t/supernova-sn2025gjc-eso515-3/370)
**Author:** [@roger.hellot.astro](https://forum.astro-colibri.science/u/roger.hellot.astro)\ **Replies:** 2\ **Last updated:** [April 7, 2025, 1:00pm UTC](https://forum.astro-colibri.science/t/supernova-sn2025gjc-eso515-3/370 "2025-04-07T13:00:55Z")
Hi, I made a positive observation of SN 2025gjc (J. Tonry et al., TNSDR No. 2025-1224), detected by ATLAS 2025-04-01 04:38:17.664. The SN seems to be part of the Galaxy ESO 515-3. The not calibrated picture is a single… --- ## [The highest energy neutrino: KM3-230213A](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 3\ **Last updated:** [February 17, 2025, 11:33am UTC](https://forum.astro-colibri.science/t/the-highest-energy-neutrino-km3-230213a/335 "2025-02-17T11:33:36Z")
The KM3NeT colloboration just announced the detection of the highest energy neutrino event ever detected (~ 200PeV, that is peta-electronvolt!). The event was recorded on 13 February 2023 at 01:16:47 UTC. The event (and… --- ## [Spectral change in T Coronae Borealis](https://forum.astro-colibri.science/t/spectral-change-in-t-coronae-borealis/334)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 1\ **Last updated:** [February 15, 2025, 2:47pm UTC](https://forum.astro-colibri.science/t/spectral-change-in-t-coronae-borealis/334 "2025-02-15T14:47:23Z")
T Coronae Borealis (or T CrB), a recurrent nova exploding every ~80 years, is showing peculiar spectral variations. A recent report from the monitoring at the Tautenburg observatory states that “the current spectral chan… --- ## [Updated schedule of the gravitational wave detectors](https://forum.astro-colibri.science/t/updated-schedule-of-the-gravitational-wave-detectors/324)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [January 26, 2025, 1:15pm UTC](https://forum.astro-colibri.science/t/updated-schedule-of-the-gravitational-wave-detectors/324 "2025-01-26T13:15:35Z")
The currently ongoing observation run (called O4b) of the gravitational wave observatories LIGO and VIRGO was meant to continue until June 9, 2025. This schedule has just been updated: an additional break for repairs wil… --- ## [AT2024afyi-M33](https://forum.astro-colibri.science/t/at2024afyi-m33/306)
**Author:** [@roger.hellot.astro](https://forum.astro-colibri.science/u/roger.hellot.astro)\ **Replies:** 3\ **Last updated:** [January 5, 2025, 12:09pm UTC](https://forum.astro-colibri.science/t/at2024afyi-m33/306 "2025-01-05T12:09:10Z")
Hello everybody, We had a positive observation this morning of AT 2024afyi at position AR01h33m10.38s – DEC+30d45m34.35s. Other data will fellow later. In meanwhile, happy New Year to all. Roger Roger Hellot … --- ## [GRB250103A : seen but not measurable](https://forum.astro-colibri.science/t/grb250103a-seen-but-not-measurable/311)
**Author:** [@marc.serrau2](https://forum.astro-colibri.science/u/marc.serrau2)\ **Replies:** 1\ **Last updated:** [January 4, 2025, 11:46am UTC](https://forum.astro-colibri.science/t/grb250103a-seen-but-not-measurable/311 "2025-01-04T11:46:44Z")
Here the GRB counterpart after 1h exposure with G (RAPAS A) filter. Or it is the background galaxy… Limiting magnitude is 20 at S/N=5. --- ## [2024: The Year in Review](https://forum.astro-colibri.science/t/2024-the-year-in-review/303)
**Author:** [@system](https://forum.astro-colibri.science/u/system)\ **Replies:** 2\ **Last updated:** [January 1, 2025, 5:09pm UTC](https://forum.astro-colibri.science/t/2024-the-year-in-review/303 "2025-01-01T17:09:17Z")
2024's Top Users Most Time Reading User Hours Read @jean.paul.astro 6 @Latge.Cedric 5 @thierrymidavaine 3 @roger.hellot.astro 2 @Astromarcos123 2 @mdebony 1 @marc.serrau2 1 @renaud.savalle … --- ## [Just to say hi](https://forum.astro-colibri.science/t/just-to-say-hi/297)
**Author:** [@pylechapelain](https://forum.astro-colibri.science/u/pylechapelain)\ **Replies:** 1\ **Last updated:** [December 30, 2024, 9:53am UTC](https://forum.astro-colibri.science/t/just-to-say-hi/297 "2024-12-30T09:53:54Z")
Hello everybody My name is Pierre from France, I do astrophotography since 2007 (beginning with Iris @christian.buil), I do usually asteroid detection using a 10 inch Newt at F4, Starizona 0.75 and a QHY294 MC. I am cu… --- ## [What is so special with GRB221009A?](https://forum.astro-colibri.science/t/what-is-so-special-with-grb221009a/16)
**Author:** [@aalkan](https://forum.astro-colibri.science/u/aalkan)\ **Replies:** 3\ **Last updated:** [December 28, 2024, 7:36pm UTC](https://forum.astro-colibri.science/t/what-is-so-special-with-grb221009a/16 "2024-12-28T19:36:51Z")
Hi, I heard a lot about GRB221009A in the astronomy community.What is so special about this astrophysical source? --- ## [Astro-COLIBRI at Rencontres du Ciel et de l’Espace (Paris, Nov 9-11, 2024)](https://forum.astro-colibri.science/t/astro-colibri-at-rencontres-du-ciel-et-de-l-espace-paris-nov-9-11-2024/259)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 8\ **Last updated:** [November 12, 2024, 3:21pm UTC](https://forum.astro-colibri.science/t/astro-colibri-at-rencontres-du-ciel-et-de-l-espace-paris-nov-9-11-2024/259 "2024-11-12T15:21:56Z")
Dear Astro-COLIBRI Community, We’re excited to announce that the Astro-COLIBRI team will be participating in the upcoming Rencontres du Ciel et de l’Espace event at the Cité des Sciences in Paris/France, taking place fr… --- ## [Announcement of the 3rd Astro-COLIBRI multi-messenger astrophysics workshop (Sept 16-20, 2024)](https://forum.astro-colibri.science/t/announcement-of-the-3rd-astro-colibri-multi-messenger-astrophysics-workshop-sept-16-20-2024/182)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 3\ **Last updated:** [October 14, 2024, 6:45am UTC](https://forum.astro-colibri.science/t/announcement-of-the-3rd-astro-colibri-multi-messenger-astrophysics-workshop-sept-16-20-2024/182 "2024-10-14T06:45:09Z")
Dear all, We are pleased to announce the 3rd Astro-COLIBRI multi-messenger astrophysics workshop, which will take place from September 16 to 20, 2024, at Institut Pascal at the Paris-Saclay University (France). Buildin… --- ## [Fête de la Science 2024](https://forum.astro-colibri.science/t/fete-de-la-science-2024/245)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 1\ **Last updated:** [October 7, 2024, 10:28am UTC](https://forum.astro-colibri.science/t/fete-de-la-science-2024/245 "2024-10-07T10:28:00Z")
:rocket: L’équipe Astro-COLIBRI est fière de participer à la “Fête de la Science” ce week-end à l’ENS Paris-Saclay, en collaboration avec l’Université Paris-Saclay ! Si vous êtes dans la région parisienne, nous vous inv… --- ## [Astro-COLIBRI at the "15th Gaia Science Alerts workshop"](https://forum.astro-colibri.science/t/astro-colibri-at-the-15th-gaia-science-alerts-workshop/243)
**Author:** [@Fabian.Schussler](https://forum.astro-colibri.science/u/Fabian.Schussler)\ **Replies:** 0\ **Last updated:** [October 2, 2024, 6:52pm UTC](https://forum.astro-colibri.science/t/astro-colibri-at-the-15th-gaia-science-alerts-workshop/243 "2024-10-02T18:52:15Z")
Another very useful and interesting meeting is coming to a close: the “15th Gaia Science Alerts workshop and ORP Time-Domain meeting” was held at the Foundation for Research and Technology - Hellas (FORTH) in Heraklion (… [Next page](https://forum.astro-colibri.science/c/general/4.md?page=1)