Observe - Alerts archive
Explanation of Alerts table
Alert ID: The name that was assigned to this Alert. Click on the link to see more information about the Alert.
Time: When Gaia first detected this Alert.
RA: The right ascension of the Alert (see Observing advice for more info).
Dec: The declination of the Alert.
Mag: The brightness of the Alert in Gaia magnitudes. For more information on magnitudes, see Observing advice. Note that a lower value for the magnitude means an Alert is brighter, and a higher value means it is fainter.
Classification: What sort of transient each Alert is.
Comment: Any additional information we have about why an alert is interesting, or information such as its distance.
Desired follow-up: Guidelines on what data we need from telescopes such as Faulkes for each Alert.
School: Initials of schools following-up this Alert (see Schools following-up Gaia Alerts).
| Alert ID | Time |
RA |
Dec | Magnitude | Classification | Comment | Desired follow-up | School |
|---|---|---|---|---|---|---|---|---|
| Gaia16ada | 9 Feb 2016, 00:03 | 188.96784 | 27.93208 | 17.72 | SN imposter | transient near/in NGC4559C spatially coincident with candidate LBV with previous outbursts. |
A massive star seems to be undergoing a series of outbursts which we want to monitor. The outburst has faded, but lets keep an eye on it. We'll need a 300 second exposure with the LCOGT 1-m telescopes in the r filter, every month or so. CURRENTLY BEHIND THE SUN! |
|
| Gaia16apd | 16 May 2016, 19:09 | 180.71544 | 44.25761 | 17.35 | SLSN | Blue transient on top of faint galaxy SDSS J120251.71+441527.4 |
This is a rare "superluminous supernova" from a exploding star. Unfortunately it's behind the Sun right now, so we can't follow it up! |
|
| Gaia18bdx | 5 May 2018, 07:06 | 166.06666 | 50.03066 | 18.75 | SN II | candidate SN in outskirts of galaxy UGC 6129, rising | ECS | |
| Gaia16bic | 17 Sep 2016, 07:31 | 122.55712 | 33.95713 | 18.00 | SN II | candidate SN in grand design spiral galaxy NGC 2532 |
We don't know what type of SN this is yet, but it should be visible at mag~18 at the very end of the night. |
|
| Gaia18aen | 17 Jan 2018, 04:16 | 120.71694 | -30.31032 | 11.33 | unknown | bright emission line star in Galactic plane brightens by 1 magnitude |
This is bright and in reach of modest telescopes - BUT only really observable from the Southern Hemisphere. We've no idea what this is - please monitor |
ECS |
| Gaia16ahw | 11 Mar 2016, 19:21 | 112.57248 | 25.03203 | 17.98 | SN Ia | Blue transient with faint host visible in SDSS aka SN 2016ayg |
This was a thermonuclear SN close to maximum brightness with magnitude. Now it's too faint to observe. |
|
| Gaia16agf | 27 Feb 2016, 06:41 | 98.53741 | -25.18462 | 17.03 | SN Ia | Candidate SN, GSTEC predicts young SN Ia at -16 days | ECS | |
| Gaia17bnk | 13 Jun 2017, 01:14 | 95.65247 | -38.56183 | 17.46 | CV | Candidate CV, 2mag rise in UV source GALEXASC J062236.61-383342.9, Gaia & CRTS have prior outbursts |
We think this is a cataclysmic variable and we want to measure its orbital period. Continuous monitoring for 2 - 3 hours in a single filter (e.g. g or r) will show how the brightness varies with time and from that we can work out the binary period.
|
|
| Gaia16afe | 21 Feb 2016, 12:31 | 91.78404 | -45.18118 | 18.86 | SN I-pec | SN candidate offset from galaxy ESO 254- G 019 (z=0.038917) by 18 arcsec |
This was a peculiar thermonuclear supernova which is very far from its host galaxy. |
|
| Gaia16ajr | 30 Mar 2016, 18:22 | 88.24821 | -17.86224 | 16.87 | unknown | Candidate SN |
This Alert isn't visible any more (as it is behind the Sun) |