AstroNotes

This report includes the classifications of 5 SN Ia, as well as 1 stellar, and 1 galaxy spectrum.

This report includes classifications of 5 Type Ia SNe, 1 Ib/c, 1 AGN, and 1 object without classification.

This report includes the classification of 4 Type Ia SN, 1 Type II, 1 Type I, and 1 object was left unclassified but we encourage further follow up.

We have obtained optical spectra of SN 2021wxl, SN 2021wzr, and SN 2021xbg, which show them to be two Type II supernovae and one Type Ib/c supernova, respectively.

This report includes the classification of one Type Ia.

This report includes classifications of 5 Type Ia's (including one Type Ia 91T-like), 2 Type II's (including one Type IIn), 1 Type Ic, 1 Type Ib/c and 1 Galactic CV. The Type Ia SN2021wdx was already…

This report includes classifications of 4 Type Ia's, 1 Type Ic-BL, 2 Type II's, 1 Type I and another SN. The Type II SN2021wvz was already classified earlier today by the Zwicky Transient Facility (T…

Here we report the ATLAS discovery of the transient ATLAS21bgsc (AT2021wuf) in galaxy NGC 6500/6501 at magnitude o = 16.86 +/- 0.03. Assuming the host is NGC 6501 at 34 Mpc, the transient was discove…

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

Here we report the classification of 6 optical transients with 2 SN IIP: SN 2021pnu, SN 2021tgm; 2 SN IIn: SN 2021qep, SN 2021vma: 1 SLSN: SN 2021rwz, and 1 Ic-BL: SN 2021otc.

This report includes classifications of 12 Type Ia's, 1Type II and 1 Type Ib SNe.

This report includes classifications of 4 Type Ia's, 2 Type II's, and one unclassified SN.

We report 6 ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is about 30 days and a typical peak r-band magnitude is …

Here we report the ATLAS discovery of the transient ATLAS21bdwo (AT2021vdr) in galaxy UGC 08056 at magnitude m_c = 19.13 +/- 0.18. At a distance of 54 Mpc (redshift independent, from NED), the trans…

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

We classify the long-duration transient AT2021sto (ZTF21abeoaio) as a probable SLSN IIn.

This report includes classifications of 6 Type Ia's, 2 Type II's, a galactic CV and 2 unclear classifications.

This report includes classifications of 2 Type Ia's, 1 Type Ic, and 1 Type II. SN 2021tii is a SN II with a rise time of more than 30 days and a blue spectrum. Follow-up observations are encouraged.

This report includes classifications of 7 Type Ia's of which one is heavily reddened, 3 Type II's, 1 peculiar Type Ib, 1 Type IIn and a spectrum showing transient-like features. We encourage follow-u…

This report includes classifications of 8 Type Ia's, 2 Type Ic-BL's, 2 Type II's and a Tybe Ib, We encourage follow-up observations.

This report includes classifications of 1 Type Ia. SN2021ujx is a SNIa at ~90 Mpc, now at peak.

Here we report the ATLAS discovery of the transient ATLAS21bckg (AT2021ujx) in galaxy NGC 6816 at magnitude o = 18.73 +/- 0.13. At a distance of 81 Mpc, the transient was discovered on MJD = 59425.42…

This report includes classifications of 7 Type Ia's (2 of which 91T-like), 3 Type II's, 1 Type Ic-BL, and 1 H-poor SN with possible CSM interaction (SN2021tqt). SN2021tyw is a possible infant Type II…

We report the discovery of a fast-fading blue luminous transient at z=0.228.

This report includes classifications of 6 Type Ia's, 2 Type IIn's. SN2021ubz is possibly a 91T-like event. SN2021uds shows an unusually strong He I narrow emission line, similar to a Ibn. SN2021qqp h…

Here we report the ATLAS discovery of the transient ATLAS21bchy (AT2021ucx) in galaxy CGCG 504-088 at magnitude o = 17.72 +/- 0.10. At a distance of 73 Mpc, the transient was discovered on MJD = 5942…

Here we report the ATLAS discovery of the transient ATLAS21bchd (AT2021ucg) in galaxy UGC 12188 at magnitude o = 18.06 +/- 0.17. At a distance of 67 Mpc, the transient was discovered on MJD = 59420.5…

We report the classification of 32 Type II core-collapse supernovae discovered/detected by the iPTF survey during 2016/2017.

We reclassify AT 2021ont as a Type II supernova which showed strong flash features (He II) at early times.

We report the spectroscopic classification of AT2021tyc as an outburst of a Cataclysmic Variable.

We report six ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is 20 days or more and a typical peak r-band magnitude…

Here we report the ATLAS discovery of the transient ATLAS21bbzl (AT2021ttt) in galaxy UGC 909 at magnitude o = 19.00 +/- 0.13. At a distance of 81 Mpc, the transient was discovered on MJD = 59414.56 …

We have obtained an optical spectrum of SN 2021tgd, which shows it to be a Type Ia supernova close to maximum light.

We classify AT 2021seu as a possible Bowen Fluorescence Flare, related to enhanced accretion onto a supermassive black hole. Our FLOYDS spectrum, obtained on UT 2021-07-10, and made public on the TNS…

We have obtained an optical spectrum of SN 2021szr, which shows it to be a Type Ia supernova.

Here we report the ATLAS discovery of the transient ATLAS21bawm (AT2021suk) in galaxy MRK 1039 at magnitude o = 17.39 +/- 0.07. At a distance of 20 Mpc, the transient was discovered on MJD = 59404.59…

We report 8 ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is about 50 days and a typical peak r-band magnitude is …

We report the classification of 13 old core-collapse supernovae from the iPTF survey.

Here we report the ATLAS discovery of the transient ATLAS21baqj (AT2021smj) in galaxy NGC 4411b at magnitude c = 17.02 +/- 0.04. At a distance of 22 Mpc, the transient was discovered on MJD = 59403.2…

We report the classification of SN 2021mlh as a Type IIP supernova at a redshift z =0.189 using spectra from the Nordic Optical Telescope.

Here we report the ATLAS discovery of the transient ATLAS21baof (AT2021skf) in galaxy NGC 4777 at magnitude c = 18.30 +/- 0.08. At a distance of 38 Mpc, the transient was discovered on MJD = 59402.29…

We report the spectroscopic classification of AT2021qyd as a peculiar Type Ib/c supernova.

We have obtained an optical spectrum of SN 2021rdc, which shows it to be a young Type II supernova about 10 days after explosion.

We report the spectroscopic classification of AT 2021ryz as a SN Ia.

We report spectroscopic classifications of 8 optical transients, including 3 SNe Ia, 2 SNe II, 2 SNe I b/c and one galactic microlensing event.

We report Swift/XRT detection of X-ray emission in the tidal disruption event (TDE) AT2021ehb/ZTF21aanxhjv.

Here we report the classification of SN 2021nxq (ZTF21abcpsjy) as a SLSN-I at z=0.15.

Here we report the ATLAS discovery of the transient ATLAS21ztj (AT2021qzp) in galaxy NGC 0247B at magnitude o = 18.00 +/- 0.13. At a distance of 81 Mpc, the transient was discovered on MJD = 59391.58…

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 that are closer than 200 Mpc in the …

We report spectroscopic classifications of 4 optical transients (2 SNe Ia and 2 SNe II), including a young SN Ia at 15Mpc.