AstroNotes

We report the classification of a very bright (r=16.3 mag) and nearby (z=0.0645) hydrogen-poor luminous/superluminous supernova in a starburst host galaxy.

We have obtained an optical spectrum of SN 2020ver, which shows it to be a Type Ia supernova seven days before maximum brightness.

We report the spectroscopic classification of 5 supernovae, of which SN 2020ocz and SN 2020ukx are a Type II and a Type Ia, respectively, in the local Universe (9.5 to 17 Mpc). Although these superno…

Here we report the ATLAS discovery of the transient ATLAS20bcmt (AT2020uzq) in the core of galaxy MCG -02-60-001 at magnitude m_o = 17.6 +/- 0.1. At a distance of 43 Mpc, the transient was discovere…

We have obtained an optical spectrum of SN 2020upe, which shows it to be a young Type II supernova.

Here we report the ATLAS discovery of the transient ATLAS20bcev (AT2020uli) in galaxy ESO 283- G 004 at magnitude m_o = 17.55 +/- 0.09. At a distance of 67 Mpc, the transient was discovered on MJD =…

We announce classifications of supernovae 2020suj (Ia), 2020taz (Ibn), 2020shr (Ia), and 2020skb (Ia) with optical spectroscopy from Apache Point Observatory.

We classify SN 2020udy in NGC 0812 (z=0.017222) as a young Type Iax supernova using spectra from the Palomar 60-inch and the Gemini North telescopes.

We have obtained an optical spectrum of SN 2020uao, which shows it to be a young Type II supernova.

Here we report the ATLAS discovery of the transient ATLAS20bbps (AT2020uas) in galaxy UGC 12288 at magnitude c = 19.48 +/- 0.18. At a distance of 75 Mpc, the transient was discovered on MJD = 59115.4…

We draw attention to the transient AT2020tkx (Gaia20ehu), a potentially unusual broad-line Ic supernova in a very faint host galaxy. Our two spectra match SN2006aj, at a pre-maximum phase, with a r…

We have obtained optical spectra of SN 2020tug and SN 2020tly, which show them to be a young Type Ia supernova at redshift 0.05 and a young Type II supernova at redshift 0.058, respectively.

Here we report the ATLAS discovery of the transient ATLAS20bbhp (AT2020toc) in galaxy UGC 4433 at magnitude o = 18.33 +/- 0.13. At a distance of 91 Mpc, the transient was discovered on MJD = 59109.61…

Here we report the ATLAS discovery of the transient ATLAS20bbft (AT2020tlf) in galaxy NGC 5731 at magnitude m_c = 15.76 +/- 0.03. At a distance of 37 Mpc, the transient was discovered on MJD = 59108…

Classification report for ZTF discoveries: SNe Ia: 2020skp, 2020sko, 2020seo, 2020sfs, and SN II: 2020tkl.

Here we report the ATLAS discovery of the transient ATLAS20bben (AT2020tiz) in galaxy ESO 365- G 028 at magnitude m_o = 19.26 +/- 0.17. At a distance of 85 Mpc, the transient was discovered on MJD = …

Here we report the discoveries of four young transients: ATLAS20znd (AT2020szq) in galaxy LEDA 1897886. At a distance of 76 Mpc, ATLAS20znd was discovered on MJD = 59103.59 (2020-09-11.59) with a ma…

Here we report the ATLAS discovery of the transient ATLAS20zbm (AT2020spq) in galaxy ESO 427- G 006 at magnitude m_o = 15.17 +/- 0.03. At a (redshift independent) distance of 40 Mpc, the transient w…

We report the classification of AT2020rkz as a Type Ib/c SN, and describe the ambiguities therein.

Here we report the ATLAS discovery of the transient ATLAS20yvq (AT2020skk) in galaxy MCG -02-52-006 at magnitude m_o = 18.33 +/- 0.17. At a distance of 54 Mpc, the transient was discovered on MJD = …

We have obtained an optical spectrum of SN 2020sjp, which shows it to be a Type Ia supernova a few days after maximum light.

We report the ZTF discovery and the follow-up of ZTF20abxyjtx / 2020sic - a young core-collapse supernova in the nearby galaxy NGC 6001 (z=0.03324). At a distance of ~140 Mpc the transient was discov…

Here we report the ATLAS discovery of the transient ATLAS20ymv (AT2020sgg) in galaxy NGC 1716 at magnitude m_o = 18.35 +/- 0.11. At a distance of 95 Mpc, the transient was discovered on MJD = 59091…

We report the discovery of transient object PS20gxa (AT2019aafl) as part of the Pan-STARRS Survey for Transients (PSST) at a current magnitude of w = 21.3. Through precovery detections and forced pho…

We report the discovery of the fast optical transient ZTF20abtxwfx/AT2020sev with the Zwicky Transient Facility (ZTF, Bellm et al. 2019, Graham et al. 2019). ZTF20abtxwfx was found during the science…

Here we report the ATLAS discovery of the transient ATLAS20yki (AT2020scb) in galaxy CGCG 456-055 at magnitude m_c = 19.20 +/- 0.18. At a distance of 72 Mpc, the transient was discovered on MJD = 59…

We are carrying out the "Pan-STARRS Search for Kilonovae" which is a focused search for intrinsically faint transients, or rapidly evolving transients in galaxies which are closer than 200 Mpc in the…

We are carrying out the "Pan-STARRS Search for Kilonovae" which is a focused search for intrinsically faint transients, or rapidly evolving transients in galaxies which are closer than 200 Mpc in the…

Here we report the ATLAS discovery of the transient ATLAS20xzd (AT2020rvn) in galaxy AGC 310274 at magnitude m_c = 18.60 +/- 0.09. At a distance of 82 Mpc, the transient was discovered on MJD = 5908…

Here we report the ATLAS discovery of the transient ATLAS20xyz (AT2020rur) in galaxy UGC 03224, at magnitude c = 18.46 +/- 0.14. At a distance of 72 Mpc, the transient was discovered on MJD = 59082.6…

We are carrying out the "Pan-STARRS Search for Kilonovae" which is a focused search for intrinsically faint transients, or rapidly evolving transients in galaxies which are closer than 200 Mpc in the…

Here we report the ATLAS discovery of the transient ATLAS20xrs (AT2020rqk) in galaxy UGC 10157. At a distance of 100 Mpc, the transient was discovered on MJD = 59080.25 (2020-08-19.25), m_c = 17.9, …

We report the classification of AT2020pzz as a Type IIn SN.

Here we report the ATLAS discovery of the transient ATLAS20vmy (AT2020rdo) in galaxy 2MASX J02565562-3533026. At a distance of 89 Mpc, the transient was discovered on MJD = 59071.59 (2020-08-10.59) …

Here we report the ATLAS discovery of the transient ATLAS20vmx (AT2020rdg) in galaxy MCG -02-35-005. At a distance of 93 Mpc, the transient was discovered on MJD = 59072.24 (2020-08-11.24) with an a…

Here we report the ATLAS discovery of the transient ATLAS20vtd (AT2020rfd) in galaxy IC 3309. At a distance of 66 Mpc, the transient was discovered on MJD = 59073.24 (2020-08-12.24) with an absolute…

We report the spectroscopic classification of SN 2020qln as a Type Ia supernova.

We report the spectroscopic classification of AT 2020rcq as a Type Ia supernova.

We report the ZTF discovery of ZTF20abqvsik / AT2020rcq - a rapidly rising young transient in the nearby galaxy UGC 06930 at z=0.00259. At a distance of ~11 Mpc the transient was discovered on Augus…

Here we report the ATLAS discovery of the transient ATLAS20vcv (AT2020qnb) in galaxy NGC 5405. At a distance of 100 Mpc, the transient was discovered on MJD = 59060.25 (2020-07-30.25) with an absolu…

We report spectroscopic classification of the bright NIR transient PGIR20eid/SN2020qmp as a young Type II supernova in UGC07125.

We report the discovery ZTF20abpgnos / AT2020qna, a young rising transient reported by the ALeRCE broker (TNS #78910) using the ZTF public alert stream. The object was detected on ZTF r-band images o…

We report the discovery of a bright candidate supernova PGIR20eid / AT2020qmp in the nearby galaxy UGC07125 at 12 Mpc. The transient was first detected on UT 2020-07-30 at a magnitude of J = 14.74 +/…

Here we report the ATLAS discovery of the transient ATLAS20uuo (AT2020qln) in galaxy UGC 00784. At a distance of 85 Mpc, the transient was discovered on MJD = 59058.52 (2020-07-28.52) with an absolu…

Here we report the ATLAS discovery of the transient ATLAS20uls (AT2020qew) in galaxy UGC 10168. At a distance of 84 Mpc, the transient was discovered on MJD = 59054.31 (2020-07-24.30) with an absolu…

Here we report the ATLAS discovery of the transient ATLAS20tuv (AT2020pzn) in galaxy ESO 605- G 004. At a distance of 106 Mpc, the transient was discovered on MJD = 59051.53 (2020-07-21.53) with an …

We report the ZTF discovery and classification of ZTF20abisysx / AT2020nov, a candidate tidal disruption event at z = 0.087. The transient was discovered on 2020 Jun 27 with a ZTF magnitude of g = 19…

Here we report the ATLAS discovery of the transient ATLAS20tgz (AT2020ptw) in galaxy 2MASX J13154378-0409500. At a distance of 81 Mpc, the transient was discovered on MJD = 59050.26 (2020-07-20.26) …

We report the ZTF discovery of ZTF20ablygyy/SN2020pni - a rapidly rising young supernova in the nearby galaxy UGC 9684, z=0.01687. The transient was discovered on July 16, 2020 at 04:44 UT with an ab…

Here we report the ATLAS discovery of the transient ATLAS20sgz (AT2020ojw) in galaxy UGC 6614. At a distance of 93 Mpc, the transient was discovered on MJD = 59041.26 (2020-07-11.26) with an absolute…