AstroNotes

This report includes classifications of one Type Ibn SN and one LBV/SN-impostor.

This report includes classifications of 4 SNe; 3 Type Ia, and a Type II.

Here we report the discovery of transient ATLAS20exn (AT2020bqm) in galaxy NGC 0213. At a distance of 71 Mpc, the transient was discovered on MJD 58881.24 (2020-02-02.24) with an absolute magnitude o…

This report includes classifications of 7 SNe; 2 Type Ia, 4 Type II and a Type Ib in the nearby galaxy NGC 3508 (z=0.013).

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 discovery of transient ATLAS20era (AT2020bjk) in galaxy ESO 441-005 (96 Mpc). At a distance of 96 Mpc, the transient was discovered on MJD 58877.52 (2020-01-29.52) with an absolut…

The Zwicky Transient Facility (ZTF) reports the discovery of ZTF20aajnksq, a red (g-r=+0.65) transient with a rapid fade rate of 2.5 magnitudes in 1.25 days. A spectrum with the Low Resolution Imagin…

Here we report the discovery of transient ATLAS20ejr (AT2020bfw) in galaxy ESO381-G020. At a distance of 5 Mpc, the transient was discovered on MJD 58851.61 == 2020-01-03.61 with an absolute magnitud…

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 ATLAS20efm (AT2020bfb) in galaxy NGC 4767B. At a distance of 42 Mpc, the transient was discovered on MJD = 58867.55 (2020-01-19.55) with an absolu…

We have obtained an optical spectrum of SN 2020bcv, which shows it to be a young Type II supernova at redshift 0.166.

This report includes classifications of 3 Type Ia's.

Here we report the ATLAS discovery of the transient ATLAS20cvy (AT2020aqe) in galaxy NGC 3836. At a distance of 53 Mpc, the transient was discovered on MJD = 58867.58 (2020-01-19.58) with an absolute…

Here we report the ATLAS discovery of the transient ATLAS20avv (AT2020aqb) in galaxy PGC1074038. At a distance of 82 Mpc, the transient was discovered on MJD = 58868.21 (2020-01-20.21) with an absol…

This report includes classifications of 2 Type Ia's and a nearby z=0.004 LBV/SN-impostor.

This report includes classifications of a Type Ic, Ia, II and IIn.

Here we report the ATLAS discovery of the transient ATLAS20caf (AT2020alh) in galaxy NGC5419. At a distance of 57 Mpc, the transient was discovered on MJD = 58867.59 == 2020-01-19.59 with an absolute…

We have obtained an optical spectrum of SN 2020ajd, which reveals it to be a Type Ic supernova past maximum light.

Here we report the ATLAS discovery of the transient ATLAS20bmm (AT2020akf) in galaxy KUG 0925+387B. At a distance of 54 Mpc, the transient was discovered on MJD = 58868.50 (2020-01-20.50) with an abs…

Here we report the ATLAS discovery of the transient ATLAS2020avo (AT2020agp) in galaxy ESO249-015. At a distance of 13 Mpc, the transient was discovered on MJD = 58867.21 (2020-01-19.21) with an abso…

We have obtained an optical spectrum of SN 2020zs, which reveals it to be a Type II supernova.

This report includes classifications of 4 Type Ia's, 1 Ia-91bg-like and 2 Type Ic's.

This report includes classifications of a Type Ia, a possible Ia-91bg-like at z=0.09, a likely nearby (z=0.009) young Type II and a host-dominated spectrum at z=0.169.

We report SALT spectroscopic classification for ASASSN-19adm/2019xfi as a SN Ia at about three weeks after the peak.

Here we report our AMI-LA observation of the Nearby supernova SN2020oi. We detect a ~10 mJy source at 15.5 GHz. We conclude that the detected emission is comprised of contribution of SN2020oi emissio…

We report the detection of radio emission from SN2020oi at 44 GHz.

We report our initial analysis of the Jansky Very Large Array (VLA) observation of the nearby (~17 Mpc) supernova SN2020oi in M100 (TNS report 58241; ATel #13393; TNS report 5875; ATel # 13391; Astro…

We report early photometry of ZTF20aaelulu (AT2020oi) from the Zwicky Transient Facility (ZTF; ATel #11266) and Swift/UVOT. ZTF20aaelulu is a rapidly rising transient coincident with M100 (z=0.0052) …

This report includes classifications of 1 Type Ia, 1 Type Ic, and an unknown transient. ZTF20aaavvlv displays a blue continuum with a small number of broad features. We encourage followup observatio…

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…

ATLAS is a twin 0.5m telescope system on Haleakala and Mauna Loa which is robotically surveying the sky above declination -40 with a cadence of 2 days (Tonry et al. 2018, PASP, 13, 064505). Here we r…

This report includes classifications of two Type Ia SNe and one Type Ia 91-T like SN.

This report includes classifications of 1 Type Ia 91T-like SN, and an unknown nuclear transient.

This report includes classifications of 1 Type Ia SN around maximum brightness, and an interacting SN. SN2019yzw displays signs of interaction, and spectral follow up is encouraged. We also report th…

QueryTNS_SN is a stand alone utility, written in bash, which can query TNS for classified supernovae (SNe) in a given month of a year, a range of moths in a given year or all 12 months of a given ye…

We report the re-classification of AT2019xis as a light echo of SN 1987A in the LMC.

This report includes classifications of one SN II (SN2019yhq), and one SN Ib (SN2019yvr) around maximum brightness. SN2019yvr is a nearby SN, located in the galaxy NGC 4666 (26 Mpc).

ATLAS is a twin 0.5m telescope system on Haleakala and Mauna Loa which is robotically surveying the sky above declination -40 with a cadence of 2 days (Tonry et al. 2018, PASP, 13, 064505). Here we r…

This report includes classifications of 1 Type Ia SN around peak brightness (SN2019wkk), one Type II SN (SN2019xis) and a transient with a blue continuum (AT2019xuo). SN2019xis is of particular inter…

This report includes classifications of 1 Type Ia SN around peak brightness, and 2 Type Ia SNe about 1 week before peak brightness.

ATLAS is a twin 0.5m telescope system on Haleakala and Mauna Loa which is robotically surveying the sky above declination -40 with a cadence of 2 days (Tonry et al. 2018, PASP, 13, 064505). Here we r…

We have obtained an optical spectrum of SN 2019wxt, which shows a blue continuum with weak, broad helium lines superimposed. The spectrum suggests SN 2019wxt to be a young SN Ib or IIb.

This report includes the classification of a blue transient. AT2019wxt shows a blue, relatively featureless continuum with potential broad feature at 5400 - 6200 Angstroms (GCN Circular #26294), and …

This report includes classifications of 2 Type Ia SNe around maximum brightness (SN2019wku and ZTF19acyihlk), a transient with a blue continuum (AT2019wmc), and a star-forming galaxy (ZTF19acyfumm). …

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…

ATLAS is a twin 0.5m telescope system on Haleakala and Mauna Loa which is robotically surveying the sky above declination -40 with a cadence of 2 days (Tonry et al. 2018, PASP, 13, 064505). Here we r…

This report includes classifications of three Type Ia's.

This report includes classifications of 3 Type Ia's. Additionally, OGLE19ugq is an AGN with broad MgII and Hbeta emission lines at z=0.453 and AT2019vrc was not visible in 30s acquisition image.

This report includes classifications of four Type Ia's and one Type II.