AstroNotes

Here we report the ATLAS discovery of the transient ATLAS21dfy (AT2021biy) in galaxy NGC 4631 at magnitude m_o = 18.12 +/- 0.14. At a distance of 4 Mpc (redshift independent, from NED), the transien…

We report on the classification of SN 2020adkm as a SLSN at z = 0.226. In addition, we identify possible broad H-alpha emission and absorption in this event, which otherwise matches the spectral fea…

Here we report the ATLAS discovery of the transient ATLAS21dfr (AT2021bhd) in galaxy UGC 08737 at magnitude m_o = 18.51 +/- 0.18. At a distance of 39 Mpc, the transient was discovered on MJD = 59242…

Here we report the classification of 6 optical transients with 3 SN Ia: SN2020aett, SN2021Y, SN2021dn; 2 SN IIP: SN2020zjk, SN2020addp; and 1 SN Ib: SN2021dx.

This report includes classifications of 4 Type Ia's, 1 02cx-like SNIa, 1 91T-like SNIa, 1 SN Ibn, and 1 Type II SN

This report includes classifications of 1 Type Ia 91bg-like SN, and a noisy spectrum of an unclassified transient.

We report the spectroscopic classification of AT 2020aeuv, 2021lx, 2021xv and 2021avg.

Here we report the ATLAS discovery of the transient ATLAS21dao (AT2021bbm) in galaxy NGC 2959 at magnitude m_o = 17.53 +/- 0.10. At a distance of 63 Mpc, the transient was discovered on MJD = 59238…

This report includes classifications of 4 Type Ia's, and 1 object showing a blue continuum.

This report includes classifications of 4 Type Ia's, 1 young Type II SN.

We have obtained an optical spectrum of SN 2021amj, which shows it to be a young Type II supernova.

This report includes classifications of 1 Type Ia SN, 1 young Type II SN, and 1 CV. Also we report the non-detection at the position of a recent GRB afterglow.

The Zwicky Transient Facility (ZTF) reports the discovery last night of ZTF21aaeyldq (AT2021any), a young and moderately red transient with a rapid fade rate of 2 magnitudes in 3 hours. The source wa…

We have obtained an optical spectrum of SN 2021abi, which shows it to be a normal Type Ia supernova a few days before maximum light, at a redshift z~0.07.

This report includes classifications of 1 Type Ia and 2 Type II's. 2021aek is a young SN II showing flash ionisation signatures. We encourage followup observations.

Here we report the ATLAS discovery of the transient ATLAS21bqr (AT2021aek) in galaxy PGC 037789 at magnitude c = 18.61 +/- 0.09. At a distance of 98 Mpc, the transient was discovered on MJD = 59227.5…

This report includes classifications of 3 Type Ia's and a Type I. 2021acx is possibly a luminous SN Ia/Ic. We encourage followup observations.

We have obtained an optical spectrum of SN 2021pz, which shows it to be a young Type II supernova.

This report includes classifications of 1 Type Ia and 1 Type II. 2021zj is likely a young SN II showing flash ionisation signatures. We encourage followup observations.

We report the spectroscopic classification of the following transients: AT2021xm as a Galactic CV; AT2021tf as a quasar.

This report includes classifications of 5 Type Ia's, 1 Type Ibc, 3 Type II's and 1 uncertain transient. 2021ok is an orphan transient whose spectrum resembles a blue continuum with possible shallow f…

This report includes classifications of 8 Type Ia's, 1 Type Ia-CSM, 1 Type Ic, 1, SLSN-I, 1 Type II and 1 galaxy. The spectrum obtained for 2020aeus is consistent with a galaxy, however, a transient …

We report the discovery of ZTF21aabgpub / AT 2021ia, a transient associated with the gravitationally lensed system 2M J1134-2103 (Lucey et al. 2018), reported by the ALeRCE broker (TNS #95604) using …

This report includes classifications of 5 Type Ia's, 1 Type Ia-91T, 1 Type Ib and 1 Type II. We encourage follow-up observations.

This report includes classifications of 6 Type Ia's, 1 Type Ia-91T, 1 CV and 1 featureless blue continuum. 2021ft is possibly a young transient whose spectrum resembles a blue featureless continuum. …

This report includes classifications of 9 Type Ia's and 4 Type II's. SN2020acsk is a peculiar Type II supernova, showing features resembling that of SN-IIb close to peak, as well as SN1987A. We encou…

This report includes classifications of 3 Type Ia's and a Ia-91T. SN2021J is a nearby Ia at ~18 Mpc, around two weeks before maximum. We encourage followup observations.

We report the discovery of ZTF21aaabvit / AT 2021J, a nearby rising transient in galaxy NGC 4414 reported by the ALeRCE broker (TNS #95259) using the ZTF public alert stream. The object was detected …

This report includes classification of 1 Type Ia supernova at z = 0.027.

This report includes classifications of 2 Type Ia's, and 1 Type II.

Here we report the classification of 11 optical transients with 6 SN Ia: SN2020aabj, SN2020abcg, SN2020abjl, SN2020abrg, SN2020acaj, SN2020acca; 1 SN Ia-91bg: SN2020acbx; 2 SN Ic: SN2020aauc, SN2020a…

This report includes classifications of 3 Type Ia's and 1 Type II.

This report includes classifications of 4 Type Ia's, 1 Type Ib

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

This report includes classifications of 4 Type Ia's, 1 Type Ic-BL, and 1 Type II.

We have obtained an optical spectrum of SN 2020acod, which shows it to be a normal Type Ia supernova 6 to 8 days before maximum brightness.

This report includes classifications of 2 Type Ia's, and 1 Type IIn.

We have obtained an optical spectrum of SN 2020acei, which shows it to be a Type Ia supernova 4 to 6 days before maximum brightness.

This report includes classifications of 2 Type Ia's.

Here we report the ATLAS discovery of the transient ATLAS20bhzu (AT2020acpi) in galaxy ESO216-G021 at magnitude c = 18.78 +/- 0.15. At a distance of 74.4 Mpc, the transient was discovered on MJD = 59…

This report includes classifications of 5 Type Ia's, and 2 Type II's.

Here we report the discovery of 24 transient objects as part of the Pan-STARRS Survey for Transients (PSST) found by citizen scientists involved in the Supernova Hunters Zooniverse Project. This too…

Here we report the ATLAS discovery of the transient ATLAS20bhnw (AT2020acma) in galaxy ESO 437- G 019 (67 Mpc) at magnitude c = 17.87 +/- 0.07. At a distance of 67 Mpc, the transient was discovered o…

Here we report on a classification spectrum for AT2020acli (DLT20aa), a faint transient (r=18.5 mag; M_r=-8.0 mag) discovered in NGC300 by the DLT40 survey.

We have obtained an optical spectrum of SN 2020acae, which shows it to be a normal Type Ia supernova close to maximum light.

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

This report includes classifications of 2 Type Ia's, 1Type Ic broad line, and SN2020abyj, which is a CC SNe with narrow Balmer lines and HeII.

Here we report the ATLAS discovery of the young supernova ATLAS20bhfe (AT2020acat) in galaxy PGC 037027 at magnitude o = 18.48 +/- 0.14. At a distance of 38 Mpc, the transient was discovered on MJD =…

This report includes classifications of 1 Type Ia, 1 Type II, and a very young Type IIb SNe. SN2020abbw looks similar to the peculiar SNIa PTF11kx.

This report includes classifications of 4Type Ia's.