AstroNotes

We report 2 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

This report includes classifications of 7 Type Ia's, 1 Type II, an AGN and a spectrum of a likely SN where strong galaxy emission inhibits a definitive classification. We encourage followup observati…

We have obtained an optical spectrum of SN 2025fwp, which shows it to be a young Type II supernova. The supernova exploded in the same galaxy as the Type Ia supernova SN 2019ako.

This report includes classifications of 4 Type Ia's, 1 Type II, 1 Type Ic and a CV

The BlackGEM Consortium announces the discovery of BGEM J132554.96-430603.3 / AT2025guz, a young (1 day limit), faint (q=20.15) transient located in the outskirts of the nearby giant elliptical galax…

This report includes classifications of 3 Type Ia supernova.

We report 2 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.

We report 3 hostless candidates selected by the ELEPHANT pipeline.

We report 4 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

We report 3 hostless candidates selected by the ELEPHANT pipeline.

We report 2 hostless candidates selected by the ELEPHANT pipeline.

We have obtained an optical spectrum of SN 2025dyr, which shows it to be a young Type II supernova. The supernova occurred in the same host galaxy as the Type Ia supernova SN 2023lhq.

We report the spectroscopic classification of 5 optical transients discovered/co-discovered by the Large Array Survey Telescope (LAST).

We report 2 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.

We report 2 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.

We report on the optical photometric follow-up of SN2024adhf/Gaia25aao conducted with the BHTOM.space global telescope network.

We announce the 2DTS: the DECam DESI Transient Survey, a new survey combining the efforts of DESIRT (DECam Search for Intermediate Redshift Transients) and the DESI (Dark Energy Spectroscopic Instrum…

We report a fast rising supernova candidate WFST0529iump (AT 2025dvo) discovered by the WFST deep high-cadence ugr-bands survey.

We report a fast rising transient candidate WFST0532hscl (AT 2025dug) discovered by the 2.5-m Wide Field Survey Telescope (WFST) during its deep high-cadence ugr-bands survey.

We report 3 SLSN, 2 TDE candidates, and an uncertain candidate from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic cla…

We have obtained an optical spectrum of SN 2025ctp, which shows it to be a Type IIb supernova at maximum light. The supernova occurred in the same galaxy as the Type Ia supernova SN 2016ys.

We report the classification of optical transient ZTF25aacnkte/AT2025axp as a tidal disruption event (TDE) at z = 0.1045, due to its light curve evolution, lack of cooling, and spectral features, inc…

We report 2 hostless candidates selected by the ELEPHANT pipeline.

We report 4 SLSN and 2 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

We report the SOAR classification of 2025cfc as a Type II SN at redshift z=0.0098 with flash features.

We report 2 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.

We announce CATS150: the Complete Astronomical Transient Survey within 150 Mpc, a new ZTF survey designed to systematically classify explosive transients within the local Universe. CATS150 merges the…

This report includes a spectrum to support the previous classification of this transient by the DEBASS group. The object is spectroscopically consistent with young Type II SNe.

We report 330 supernova candidates discovered by the 2.5-m Wide Field Survey Telescope (WFST) during the first two months of its deep high-cadence ugr-bands survey.

We report early photometric detections from the Wide Field Survey Telescope deep high-cadence ugr-bands survey of 14 previously reported supernova/candidates.

This report includes classifications of 4 Type Ia supernovae

This report includes classifications of 3 Type Ia's, 1 Type II and 1 Type IIb supernova. SN2025bco is an infant Type II, showing strong flash ionisation features. We encourage followup observations.

This report includes classifications of 3 SNe Ia, 1 SN II, 1 SN IIb and 1 Galaxy. AT2025ayw is probably a CV, given the blue spectrum without any broad SN-like features, no obvious host galaxy and lo…

We report the classification of optical transients ZTF24abwsfdk/AT 2024admt and ZTF25aabebve/AT 2024agqx as tidal disruption events (TDEs). Both sources were selected by the tdescore ML classifier (S…

This report includes classifications of 8 Type Ia's, 4 Type II's. and 1 Type Ia 91T-like SN.

We report 2 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

This report includes classifications of 5 type Ia, 1 Ia-91T and 1 SN II. AT2025atd shows a blue continuum and no obvious broad SN features, and thus its spectral type is unclear. We encourage followu…

We report on the optical photometric follow-up of AT2025aiv conducted with the 0.68m Horten telescope, Horten Videregaende Skole, Norway through BHTOM.space system.

We report the classifications of 4 Type Ia's and 1 Type II.

The BlackGEM Consortium notes that the recently discovered AT2025ajq is located in the outskirts of the giant elliptical galaxy Centaurus A / NGC 5128

We report observations of 14 transients using the Shane Kast spectrograph at the Lick observatory on the nights of 2025-01-23 and 2025-01-24. New classifications were found for 10 objects, which incl…

This report includes classifications of 3 Type Ia's and 1 young core-collapse SN.

This report includes classifications of 5 Type Ia's and 1 Type Ibn

This report includes classifications of 3 Type II's and 1 Galactic transient. SN2025et is most likely a 87A-like Type II in a dwarf galaxy.

We report 12 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 …

This report includes classifications of 2 Type II's, 1 featureless transient of likely Galactic origin, and one re-classification of a previously blue and featureless transient to a SLSN

We report 4 SLSN and 3 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…

We report on the optical photometric follow-up of SN2024gy conducted with the BHTOM.space global telescope network.

This report includes classifications of 1 faint Type Iax, 1 Type Ic, one possible SLSN and one AGN.

We report 2 hostless candidates selected by the ELEPHANT pipeline.