News 2019 - Gaia
04/06/2019 Gaia DPAC Services downtime
Tomorrow 5 June 2019, between 16:30 and 19:30 CEST maintenance will be performed to the Cosmos infrastructure used to run the Gaia DPAC services. This means that the following DPAC services will be down during that period: Gaia Helpdesk, Gaia Jira and Gaia DPAC wiki. Some other Gaia web applications might be affected. However, Gaia SVN, Gaia Content Server, Gaia Cosmos and Gaia Archive should all remain accessible. UPDATE: the downtime also affects the data release documentation that comes along with the data on the Gaia Archive.
23/05/2019 Lorenzoni Prize 2019 for Gaia DPAC member Eloisa Poggio
The Lorenzoni Prize is an award instituted by the Societa' Astronomica Italiana (SAIt) with the sponsorship of "Officina Stellare" (an Italian manufacturing company in the field of design and construction of telescopes and precision opto-mechanical instrumentation for professional applications for scientific research, aerospace and defense) to reward the best scientific article published by a young researcher in the last 3 years.
This year the Lorenzoni Prize was won by Eloisa Poggio, a young researcher that has published the paper "The Galactic warp revealed by Gaia DR2 kinematics". This paper using Gaia DR2 data reveals that the warp of the Milky Way is a gravitationally induced phenomenon. She was awarded with her prize during the SAIt national meeting that was held in Rome on 16 May 2019.
13/05/2019 Update on the Gaia DPAC content server (livelink)
You may have experienced some problems accessing our Gaia DPAC documents on the Gaia content server (Gaia Livelink). Since the migration of the content server, you need to access the Gaia DPAC documents in a different way when you follow the URLs from the email alert. Please follow the following procedure:
- Go to Gaia Cosmos and login
- Go the DPAC Services —> Livelink / Content Server and click the link to enter the content server.
- The overview page of our Gaia content server opens now. Now you can access the documents by either:
- follow the links given in the weekly alerts mailing to access the documents.
- click the “Valid” link under “All Gaia Documents” and a page with all Gaia documents opens with the newest issues at the top.
Please be aware that this is the new procedure to access content server documents from now on. If you skip step 2 and then follow the links from the alerts email, you will arrive at a page to enter login details to the content server. Trying to login through this login page will give an error.
[Update 14-05-2019] the below issues have been solved now.
Apart from the new procedure that one needs to follow from now on, we are still experiencing some hickups with the system which could cause the following to happen:
- Slow loading of the document
- Error when the loading of the document times out
- Strange fonts in the PDF documents
- Strange scribbles in the PDF documents
We are aware of these issues and we are working together with the supplier of this software to find a solution for these. There is alwasy the option to download the document and the downloading of documents works as usual. We are sorry for the inconvenience this causes and we hope to get things fixed soon.
13/05/2019 Gaia Archive version 2.6
Today a new version of the Gaia Archive is rolled out. A temporary downtime of the Gaia Archive is expected between 10:30 and 12:30 CEST, after which you will be able to enjoy the upgraded performance of our Gaia Archive when retrieving your Gaia data!
08/05/2019 Gaia DPAC content server
Due to the recent migration, there are some hickups with respect to the access to Gaia DPAC content server documents. Please be aware that the documents are still accessible if you go to the content server through the DPAC services on the Gaia Cosmos page. Then you can search for the specific document you are interested in and read them. Easy search is to open the folder with all Gaia DPAC documents and then search with ctrl-f or cmd-f for the last part of the code. We hope to get things fixed and back to normal soon, but it might take till next week to get the solution in place.
25/04/2019 Geographic contributions to DPAC
Today marks the first birthday of our Gaia Data Release 2, a data release that truly changed our view of the Milky Way. We'd like to celebrate this day with a special thank you to all the people involved in all stages of Gaia's life: from initial proposal, to gathering interest, to design and building and actual operating of the spacecraft. From getting the data down, checking the health of the data, to processing the raw data into a scientifically usable format and then validating to make sure the data is truly that great!
In the image released today you can see the geographic contributions to the Gaia Data Processing and Analysis Consortium. It shows the countries where the people in DPAC are working. Read further on Gaia DPAC and its contribution to Gaia Data Release 2 in our newest story available here.
18/04/2019 Summary of the 53rd ESLAB symposium
From 8-12 April 2019, the 53rd ESLAB symposium took place at ESTEC, The Netherlands. A summary of the results shown at the symposium can be found here.
08/04/2019 53rd ESLAB symposium kicks off
Today the 53rd ESLAB symposium "the Gaia universe" kicks off. The symposium is held at ESA/ESTEC in The Netherlands with topics ranging from stellar clusters to the impact to solar system objects and from dust maps to kinematics of the Milky Way.
07/04/2019 Gaia newsletter
The 6th issue of the Gaia newsletter just came out. Interested in the contents? Read through the newsletter here. Information on how to subscribe or unsubscribe to the Gaia newsletter can be found here.
07/04/2019 Rethinking everything we know about star clusters
Recently an overview article appeared on ESA Science & Technology discussing the role of Gaia in our knowledge of star clusters. By studying stellar clusters, Gaia reveals much about the formation and evolution of stars in our surroundings. Read the full article here.
20/03/2019 Updated: DPAC Services are back up
Due to some network issues at ESAC, some Gaia DPAC services like Gaia Jira, Gaia SVN and Nexus are down. We are working on this and hope to get our services back up soon. Update: all services are back up.
14/03/2019 Cosmos mailing lists: issue fixed now.
On Thursday 7 March around 18:00 we switched the Cosmos system to the new Liferay 7 version. This switch had an unexpected effect on the population of the Cosmos mailing lists. The population of these mailing lists was not stable since the switch and it is unclear which mailing lists were affected and which ones not. Personal email addresses were not affected, only mailing lists were affected.
However, the emails sent out to the lists in the past week may not have arrived properly. If it arrived with some people, it might not have arrived with all people. So do not assume your email reached the full list because you got a reply to it.
ACTION NEEDED for emails sent between Thursday 7 March 18:00 CET and Wednesday 13 March 13:00 CET.
-Please resend important emails you sent out to any Gaia mailing list ending with @cosmos.esa.int. Do this only if you initiated that email (so if you sent that email originally).
-If you used a mailing lists with @rssd.esa.int, the above is valid as well (rssd.esa.int is forwarded to cosmos.esa.int). Then correct your address book to replace all mailinglists ending with @rssd.esa.int into @cosmos.esa.int.
SUGGESTION for long threads:
-Resend only the latest email which contains the full conversation thread to minimize emails send around.
Our apologies for the inconvenience. This issue was solely caused by the Cosmos portal migration so there is no reason to think this will happen again any time soon
11/03/2019 Issues with Cosmos mailing lists
Currently we are investigating an issue with the population of Cosmos mailing lists. Not everyone of a team used to populate a Cosmos mailing list receives the email sent. You might need to resend emails at a later stage to the mailing list. We hope to solve this problem soon and will send around an email once mailing lists are again working as expected.
06/03/2019 With sadness we announce the passing of Jordi Torra
It is with great sadness that we learned of the passing away of Prof. Jordi Torra on February 26 2019. Jordi was one of the important movers of Gaia and in particular DPAC. His leadership of the early prototype for a Gaia data processing system and his community organizing efforts in Spain led to the many invaluable Spanish contributions to DPAC.
Jordi and the positive spirit in which he always approached any difficulties encountered along the way to make Gaia and DPAC happen will be very much missed. An obituary has been written by the Gaia team in Barcelona.
04/03/2019 Downtime for DPAC services and Gaia Cosmos
We are planning to migrate our Cosmos webpages to a new version of software, and at the same time, we will apply some patches for all services like Jira, Helpdesk and Wiki. This requires some downtimes.
On Wednesday 6 March from 16:00 to 19:00 CET most DPAC services will be down. Applications affected will be the Gaia Jira, Gaia Wiki and Gaia Helpdesk.
On Thursday 7 March, the Cosmos portal will be in maintenance from 8am CET for 30 minutes and thereafter frozen the entire day. This means that we will not be able to add news or updates on the website. Also, all portlets will be deactivated.
So on 7 March, you will not be able to use the Gaia people finder, Gaia people editor, any of the forms deployed on Gaia Cosmos nor the document numbering tool. The downtime also affects the self-registration tool or your ability to subscribe / unsubscribe from the Gaia newsletter.
The downtime on 7 March will not affect the DPAC services and you should be able to use Gaia Jira, Gaia Wiki, Gaia Helpdesk, SVN, etc. without any problems.
22/02/2019 Update to the Gaia DR2 known issues
Today an update to the Gaia DR2 known issues was published discussing Gaia DR2 photometry. We advise you to read through this topic if you use Gaia DR2 photometry.
15/02/2019 Opening for a software developer in the Gaia Barcelona research team
The Gaia team of the Universitat de Barcelona (IEEC – ICCUB) has an opening for a software developer. This team is involved in the simulations and data processing of astrometric and photometric data from the Gaia satellite, and is responsible of the Barcelona Data Processing Center, located in the Marenostrum supercomputer.
More information on this vacancy can be found here.
01/02/2019 Scientific programme of "The Gaia Universe" announced
The scientific programme of the 53rd ESLAB symposium 'the Gaia universe' is now online. Participants taking part in the pitch sessions can also review the schedule here. Next to oral presentations and pitch sessions, two poster sessions are held.
31/01/2019 Update to Gaia DR2 known issues page on radial velocities
Today on ArXiv a paper appeared by Boubert et al. describing potential contamination of radial velocities in crowded regions. A summary has been added to our Gaia DR2 Known Issues page, along with links to the paper and the accompanying data. The page also describes other topics like astrometry and crossmatches, and complements the Gaia DR2 data release documentation.
The Gaia data processing toward Gaia DR3 is progressing at full speed. Although the schedule has stabilised, there are several uncertainties as many elements of the pipelines will see the real data in an operational environment for the first time. Taking the uncertainties into account brought the schedule of the next release toward the end of the earlier announced period of the first half of 2021.
To mitigate the impact on research, the Gaia DR3 will be split into two releases. This way, data that is ready earlier, will be released earlier. The early release, Gaia EDR3, contains astrometry and (integrated) photometry i.e. positions, parallaxes, proper motions, G-band fluxes as well as integrated red- (RP) and blue-band (BP) fluxes, all based on 34 months of data resulting in better accuracy with respect to Gaia DR2. First results for a predefined list of quasars and extended objects may also be included already in the early release. Gaia EDR3 will take place in Q3 of 2020.
Gaia DR3, which is anticipated to take place during the second half of 2021, will supersede Gaia EDR3. This means that the source list and any data published in Gaia EDR3 will not change, but is simply copied to Gaia DR3. Therefore Gaia DR3 is based on the same 34 months of mission data as for Gaia EDR3. The additional products include:
- radial velocities (significantly more due to fainter magnitude limit),
- BP/RP/RVS spectra (new products),
- Solar system data (significantly more sources included),
- variability information (significantly more objects due to longer time interval),
- results for non-single stars (new products), and
- astrophysical parameters (based on spectra).
The final inclusion of the products into Gaia DR3, as well as Gaia EDR3, is subject to successful validation.
21/01/2019 Gaia newsletter
An email was sent out recently to Gaia newsletter subscribers with instructions on how to keep receiving the Gaia newsletter. These instructions are explained on this page in more detail, with some answers to frequently asked questions.
08/01/2019 update: Gaia Archive is fully accessible now
There were some issues when accessing the Gaia Archive earlier today, but these have been fixed now.
29/12/2018 Movement of tiny galaxies surrounding the Milky Way