AstroNotes

This report includes classifications of 3 SNe Ia and 1 CV.

This report includes classifications of 4 Type Ia's, 1 Type II, 1 Type Ic, and one unclear red transient (SN 2024ixo). Follow-up observations, in particular of SN 2024ixo, are encouraged.

We report on the ZTF discovery of long-lasting transient emission towards the nucleus of 2MASX J21240027+3409114, a Seyfert 1 galaxy at z = 0.083. Preceded by at least 730 rest-frame days of no activ…

We report 7 hostless candidates selected by the ELEPHANT pipeline.

We report on the ZTF discovery and LCOGT follow-up imaging of AT 2024muv (ZTF24aatbpbr), a bright SN candidate in NGC 4699, in the Virgo cluster of galaxies

We report the discovery of 78 transient sources likely at redshifts z = 0.21-4.82, each discovered in the JADES Deep field, which is located in GOODS-South (GOODS-S). We discovered these transients u…

We report 9 ZTF superluminous supernova candidates selected by our software filter and subsequent human vetting. In this sample, a typical rise time is longer than 20 days and a typical peak r-band m…

We report spectroscopic follow-up observation of AT 2024lby (ZTF24aarvbxj). Our spectrum shows narrow absorption lines of Balmer, Na ID, and Ca II H & K at the Milky-Way Rest frame. AT 2024lby is lik…

Here we present photometric follow up observations of selected optical transients using 0.76-m Baker-Nunn Schmidt Telescope + CCD at Rothney Astrophysical Observatory of the University of Calgary and…

We report photometric and spectroscopic observations of a rapidly evolving transient, AT2024kmq (ZTF24aapvieu). A Gemini spectrum shows that the host-galaxy redshift is z = 0.192 and that the galaxy …

We report 7 ZTF superluminous supernova candidates selected by our software filter and subsequent human vetting. In this sample, a typical rise time is longer than 30 days and a typical peak r-band m…

We report 2 hostless candidates selected by the ELEPHANT pipeline.

This report includes classification of one possible type Ib supernova with strong Ca features (similar to previous object SN 2010et), in the elliptical galaxy ESO 460- G 026.

This report includes classifications of three SNe Ia, and one SLSN-IIn, as well as two cataclysmic variables.

This report includes the classification of ten SNe Ia, and two SNe Ia-91T.

This report includes classifications of two SNe Ia, two SNe IIn, two SNe Ia 91T-like, one SN II, and one blue continuum source.

This report includes classifications of five SNe Ia, two SNe II, one SN IIb, one SN Ia 91T-like, two SN and one red continuum source.

This report includes classifications of six Type Ia SNe, and one AGN-like transient.

We report the classification of AT 2024doo / BGEM J131235.02-353834.8 / Gaia24asm as a H+He TDE.

We report 5 hostless candidates selected by the ELEPHANT pipeline.

We report the discovery of an transient in NIRCam images of the SMACS-0723 field taken by the James Webb Space Telescope on MJD 60441.82 (GO-4043, PI Callum Witten). We detect a new source at RA=110…

We report the ZTF independent discovery and LCOGT follow-up photometry of AT 2024iss (GOTO24bmf, ZTF24aankvcy), a bright and fast transient located in a dwarf galaxy in the Coma cluster of galaxies

Here we report the GOTO discovery of a young transient at 18.7 Mpc.

We used the Low Resolution Imaging Spectrometer (LRIS) on the Keck Telescope to obtain a spectrum of AT2024hif/ZTF24aalbxfh. Narrow Hydrogen features at z = 0 confirm that the source is galactic.

We report photometric and spectroscopic observations of a rapidly evolving blue transient with a host-galaxy counterpart, AT2024hxb (ZTF24aalppmi). We obtained an LRIS spectrum, which yielded a reds…

This report includes the classification of 1 transient.

This report includes the classification of 5 transients.

We announce the next public experiment with the Zwicky Transient Facility (ZTF), set to happen over three consecutive nights starting on 2024-05-06 03:32 UT. With nightly-cadence, three-band (g, r, i…

Here we present multi-band photometric follow up observations of 9 optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council of C…

We report ATLAS forced photometry, LCOGT imaging, and analysis of SN 2024gzk, the last reported supernova in the luminous infrared galaxy Arp 299, the most prolific supernova factory in the local uni…

We report ZTF photometry and Gemini spectroscopy of a fast-rising blue transient coincident with a high photo-z galaxy.

This report includes classifications of five Type Ia's, one Type II, one SLSN-I and one AGN. We encourage followup observations.

We report 9 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 …

This report includes classifications of two normal Type Ia's, one Type Ia-pec, and one Type II. SN 2024gei is an infant Type II, showing strong narrow Balmer emission lines, and SN 2024gep is a pecul…

We report on the near-IR properties of the likely progenitor star of the recently discovered SN 2024ggi (ATLAS24fsk, GOTO24aig) in NGC 3621 using archival data from the VISTA Hemisphere Survey. VHS J…

We measured the brightness at the location of SN 2024ggi (ATLAS24fsk) in the Legacy Survey images and found absolute magnitudes within the range typical for a red supergiant. We caution however that…

We observed AT 2024ggi (ATLAS24fsk) with the 40cm-SLT at Lulin Observatory, Taiwan. We confirmed that the object has rapidly rising 2.3 mag in 8.1 hours in r-band since the discovery. The current mag…

We confirm the reported discovery of AT2024ggi in NGC 3621 (AstroNote 2024-100) with GOTO as part of our all-sky survey, detected at L = 16.83 +/- 0.02 (2024-04-11T10:51:22). Data taken 24h prior (20…

This report includes classifications of 6 Type Ia SNe and one narrow lined transient (AT2023adr)

We announce the fourth experimental survey with the Zwicky Transient Facility (ZTF), set to occur over three consecutive nights starting on 2024-04-09 at 03:07 UT. This experiment aims to identify fa…

This report includes classifications of two Type Ia SNe, one Type Ic-BL SN and one probable SN 2024fpj. The latter appears to lie in a cluster of galaxies; the spectrum displays several unidentified …

We report the spectroscopic observations of the rapidly fading AT2024fkm, with spectral and light curve appearances reminiscent of AT2017gfo.

This report includes classifications of two Type Ia and one Type II SN. SN2024fee most closely resembles an 02cx-like SN.

This report includes classification of one Type Ia SN.

This report includes classifications of two CVs, eight Type Ia SNe (including SN2024fbo, which is significantly pre-maximum), a Type II SN, and two transients of uncertain nature.

This report includes classifications of 4 Type Ia and 2 Type IIn SNe (both of which display lightcurves rising for thirty days) and one probable SN of uncertain type.

We report on LCOGT follow-up photometry of AT 2024eyo (ATLAS24ein), a bright supernova candidate in ESO 285- G 048 (32.156 Mpc)

Here we present multi-band photometric follow up observations of 11 optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council of …

We report the discovery and classification of ZTF24aahgaov / SN 2024epr - a peculiar, young, thermonuclear supernova in the nearby galaxy NGC 1198 (~25 Mpc).

We are pleased to announce the reactivation of TNS services for incoming O4 LVK GW event alerts, providing sky maps and object lists of existing transients on the TNS that fall within event localizat…