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 |
|---|---|---|---|---|---|---|---|---|
| Gaia16alt | 23 Apr 2016, 10:05 | 325.74996 | 66.19105 | 16.90 | YSO | 1.5 mag decline in YSO V* V350 Cep |
Young Stellar Objects (YSOs) sometimes have dips in brightness. We've seen such a dip in Gaia16alt, and we need ri imaging every two nights to confirm! |
|
| 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! |
|
| Gaia16aye | 5 Aug 2016, 00:53 | 295.00474 | 30.13149 | 14.27 | ULENS | 1.2 mag rise in red star near Galactic Plane |
Gaia16aye is our favourite confirmed binary microlensing event. And it's still not over - so please continue observing while it declines back to 'normal' |
|
| Gaia16aza | 6 Aug 2016, 19:25 | 245.35763 | -26.77503 | 14.98 | unknown | bright blue hostless transient |
Our best guess is that this is a new Cataclsymic Variable. It's quite bright at 15th magnitude, and we request monitoring in blue and red filters (e.g. g and r). A spectrum would be great so we can try to understand if it's really a CV, or something even more exotic. |
|
| Gaia16bef | 30 Aug 2016, 23:09 | 203.66082 | -23.68151 | 15.21 | SN Ia | confirmed SN Ia, found by ASAS: SN 2016eiy |
This is a bright Type Ia supernovae in a nearby galaxy! See if you can get some imaging of it - try ugri imaging every two nights, it's currently mag~16 |
|
| Gaia16bgk | 11 Sep 2016, 16:21 | 310.16636 | -54.31064 | 14.15 | SN Ia | candidate SN in NGC 6942 GS-TEC predicts SN Ia |
This is a nice nearby Type Ia SN, and it's bright too - mag~14.5. You should be able to spot this with a small telescope and a CCD camera. |
|
| 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. |
|
| Gaia17bej | 7 May 2017, 14:30 | 274.25440 | -31.38352 | 14.60 | ULENS | source towards Galactic Bulge brightens by 3 mags, candidate microlensing event |
Candidate microlensing event... or is it? We don't know. Observe it to help us find out! |
|
| 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.
|
|
| Gaia17bnl | 12 Jun 2017, 22:47 | 312.75374 | 44.53049 | 16.48 | YSO | 1 mag dip in YSO V1701 Cyg |
Young star in the North American Nebula. Appears to fade because of dust in the local environment. Continuous observations preferred in two filters, e.g. V and I |