AstroNotes

We report the fast, blue transient AT2023bbu (ZTF23aabtjjc/ATLAS23bnt), coincident with a faint star-forming galaxy. The rise time of the transient is about two days and it has faded by 2.3 mag over…

Here we report the ATLAS discovery of the transient ATLAS23ckr (AT2023ciy) in galaxy ESO 220- G 012 at magnitude m_o = 17.55 +/- 0.07. At a distance of 102 Mpc, the transient was discovered on MJD =…

Here we report the ATLAS discovery of the transient ATLAS23cgo (AT2023bvh) in galaxy KUG 0843+275 at magnitude m_c = 17.80 +/- 0.08. At a distance of 82 Mpc, the transient was discovered on MJD = 59…

Here we report the ATLAS discovery of the transient ATLAS23cgp (AT2023bvi) in galaxy UGC 06674 at magnitude m_o = 18.67 +/- 0.18. At a distance of 92 Mpc, the transient was discovered on MJD = 59989…

This report includes classifications of 3 Type Ia, 1 Ib, 1 II and a SL supernova, 1 AGN and a CV

Here we report the ATLAS discovery of the transient ATLAS23cem (AT2023btj) in galaxy ESO 450- G 006 at magnitude m_o = 17.59 +/- 0.1. At a distance of 61 Mpc, the transient was discovered on MJD = 59…

This report includes classifications of 2 Type Ia, 1 Ic supernovae and a gap transient.

Here we report the ATLAS discovery of the transient ATLAS23cas (AT2023bqj) in galaxy ESO 163- G 011 at magnitude m_c = 19.28 +/- 0.16. At a distance of 41 Mpc, the transient was discovered on MJD = …

Here we report the ATLAS discovery of the transient ATLAS23caw (AT2023bql) in galaxy CGCG 059-051 at magnitude m_o = 18.76 +/- 0.15. At a distance of 85 Mpc, the transient was discovered on MJD = 59…

Here we report the ATLAS discovery of the transient ATLAS23cav (AT2023bqk) in galaxy NGC 3862 at magnitude m_o = 18.32 +/- 0.18. At a distance of 95 Mpc and showing a projected offset of ~47 kpc fro…

Here we report the ATLAS discovery of the transient ATLAS23byo (AT2023bpg) in galaxy 2MASX J12530486-1520328 at magnitude o = 16.57 +/- 0.05. At a distance of 63 Mpc, the transient was discovered on …

Asiago spectroscopic classification of three SNe AT2023bmn (type Ia), 2020bmp (type Ia) and AT 2023bmo (likely early SNII).

Here we report the ATLAS discovery of the transient ATLAS23bvs (AT2023bmo) in galaxy UGC 06583 at magnitude m_o = 17.75 +/- 0.17. At a distance of Mpc, the transient was discovered on MJD = 59985.3…

We report the spectroscopic observation of SN 2023awp and confirm its classification as SN IIn.

This report includes classifications of three Type Ia's, one Type IIb and one Type IIn.

We report 6 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 …

Here we report the ATLAS discovery of the transient ATLAS23bqn (AT2023bel) in galaxy MCG +01-08-036 at magnitude m_o = 17.86 +/- 0.21. At a distance of 82 Mpc, the transient was discovered on MJD = …

Here we report the ATLAS discovery of the transient ATLAS23bmo (AT2023azu) in galaxy ESO 005- G 006 at magnitude m_o = 17.99 +/- 0.08. At a distance of 67 Mpc, the transient was discovered on MJD = …

This report includes classifications of 1 Type Ia, 1 Type II, and 1 SLSNII.

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

We report the discovery of the very fast optical transient ZTF23aabmzlp/AT2023azs with the Zwicky Transient Facility (ZTF) at coordinates: RA = 11:30:16.49, Dec = +65:51:10.01. ZTF23aabmzlp was first…

Here we report the ATLAS discovery of the transient ATLAS23bkn (AT2023avs) in galaxy ESO 329- G 007 at magnitude m_c = 17.27 +/- 0.06. At a distance of 67 Mpc, the transient was discovered on MJD = …

Here we report the ATLAS discovery of the transient ATLAS23bko (AT2023avt) in galaxy CGCG 007-038 at magnitude m_o = 18.47 +/- 0.14. At a distance of 57 Mpc, the transient was discovered on MJD = 59…

We report the discovery of a hostless, fast-evolving red transient. AT2023avj is likely an afterglow with no reported GRB counterpart.

We report the discovery of eight transient sources likely at redshifts z = 0.665-1.764, each discovered in the GOODS-South (GOODS-S) field using the 9-band JWST/NIRCam imaging data obtained by the JW…

Here we report the ATLAS discovery of the transient ATLAS23bka (AT2023aub) in galaxy IC 4219 at magnitude o = 16.99 +/- 0.05. At a distance of 55 Mpc, the transient was discovered on MJD = 59970.31 (…

Here we report the ATLAS discovery of the transient ATLAS23bfe (AT2023agv) in galaxy WKK 3323 at magnitude m_o = 18.96 +/- 0.17. At a distance of 67 Mpc, the transient was discovered on MJD = 59968…

Here we report the ATLAS discovery of the transient ATLAS23axn (AT2023wn) in galaxy CGCG 017-031 at magnitude m_o = 17.64 +/- 0.05. At a distance of 63 Mpc, the transient was discovered on MJD = 599…

This report includes classification of 1 young Type II supernova.

Here we report the ATLAS discovery of the transient ATLAS23ald (AT2023ng) in galaxy 2MASX J09152204-1852168 at magnitude m_o = 18.49 +/- 0.12. At a distance of 75 Mpc, the transient was discovered o…

This report includes classifications of 1 Type Ia, 1 ambiguous SN and 1 Nuclear Transient. The spectrum of the ambiguous SN2023it resembles a blue continuum with tentative narrow HeII 4686A at a reds…

This report includes the classifications of 4 Type Ia, 1 Type II and 1 Type IIb SNe.

This report includes the classifications of 3 Type Ia, 1 Type Ib SNe and one CV.

Here we report the ATLAS discovery of the transient ATLAS23ahs (AT2023fa) in galaxy IC 1705 at magnitude m_o = 18.44 +/- 0.16. At a distance of 73 Mpc (redshift independent, from NED), the transient…

Using two epochs of NIRCam data from the JWST GTO PEARLS program, we discovered a transient in the HST Frontier Field MACS J0416.1-2403. The transient was invisible in the previous HST data. It was…

Using two epochs of NIRCam data from the JWST GTO PEARLS program, we discovered a transient in the HST Frontier Field MACS J0416.1-2403. The transient was invisible in the previous HST data. It was…

Here we report the ATLAS discovery of the transient ATLAS23afe (AT2023aw) in galaxy ESO 575- G 050 at magnitude o = 18.60 +/- 0.25. At a distance of 92 Mpc, the transient was discovered on MJD = 5994…

Here we report the ATLAS discovery of the transient ATLAS23adv (AT2023Q) in galaxy IC 1756 at magnitude m_o = 17.51 +/- 0.11. At a distance of 87 Mpc, the transient was discovered on MJD = 59947.08 …

Here we report the ATLAS discovery of the transient ATLAS23abv (AT2023E) in galaxy ESO 195- G 035 at magnitude m_o = 17.75 +/- 0.13. At a distance of 99 Mpc, the transient was discovered on MJD = 59…

Here we report the ATLAS discovery of the transient ATLAS23abt (AT2023D) in galaxy WKK 1218 at magnitude m_o = 18.73 +/- 0.16. At a distance of 76 Mpc, the transient was discovered on MJD = 59946.01 …

This report includes the classifications of 10 Type Ia, 4 Type II SNe and one possible SLSN.

This report includes the classifications of 3 Type Ia SNe and one nova.

This report includes the classifications of 3 Type Ia SNe and one CV.

Follow-up observations of the optical fast transient ZTF22acaruqr/AT2022adzb (Coughlin et al., AstroNote 2022-270) were carried out with the Neil Gehrels Swift Observatory starting on 2022-12-25 02:1…

This report includes the classifications of 1 Type Ia SN, 2 Type II SNe, 1 CV, 1 blue featureless transient, and one ambiguous SN. We report AT2022addk as a SN and find good matches to a Type II SN, …

We report the discovery of the fast optical transient candidate ZTF22acaruqr/AT2022adzb with the Zwicky Transient Facility (ZTF) at coordinates RA = 08:18:03.60; Dec = +55:19:20.43. The transient lu…

This report includes 1 Type Ia, 1 Type Ia-91T-like, 1 Type Ic and 1 Type I SNe. AT2022acch shows a blue continuum and with a measured redshift of 0.4, results in a magnitude of -22.3. This is likely …

This report includes the classification of 1 CV, 3 Type Ia SNe and 1 Type II SN.

We report 5 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 …

This report includes two classifications. AT2022aaoo shows strong Balmers features at a redshift of z = 0.27, which gives an absolute magnitude of -22. This could be a SLSN IIn. AT2022aaon shows …