AstroNotes

We observed AT 2024ggi (ATLAS24fsk) with the Mephisto facilities (50 cm array and 1.6m) located at the Lijiang observatory. The preliminary analysis of 1.6m images indicates that the SN has brighte...

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...

We present follow-up photometry of AT2024fkm using AST3.

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 th...

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 o...

We present new photometric and spectroscopic observations of SN 2024amf. The spectra show narrow emission lines from H-alpha and [O III]-5007 at a common redshift of 0.0673, lowering the peak absol...

We report new radio observations of the tidal disruption event (TDE) AT2024bgz/ZTF24aaecooj.

We present the results of the monthly ZTF experiment, conducted concurrently with DECam observations, which aimed to detect rapidly evolving transients in the combined dataset. Despite adverse weat...

We report the detection of radio emission coincident with the nuclear transient AT2020afhd.

Here we present Multi-Senor Photometric Follow-up of Probable Novae in M31 using 3 different observatories in Canada. 1) DAO - 1.82-m Plaskett telescope (Dominion Astrophysical Observatory) 2) RA...

Here we present multi-band photometric follow up observations of 17 optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council o...

We report long-duration, pre-explosion activity in the type IIn SN 2023vbg (ZTF23abkhwgb, ATLAS23yal) located in the dwarf galaxy SDSS J074343.73+342230.2 at a redshift of 0.0173

We report observations of the blazar PKS 0446+11 with the Large Array Survey Telescope (LAST) during one night, following up recent reports of multi-wavelength brightening and the spatial coinciden...

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

Here we present multiband photometric follow up observations of SN2023wrk in NGC 3690 discovered by B. Godson et al. (GOTO) on 2023-11-04.229. The observations were done using a 91mm refractor + CM...

We report LCOGT follow-up photometry and the position of the type Ia SN 2024gy, recently discovered by K. Itagaki, in NGC 4216, in the Virgo cluster of galaxies.

We report ATLAS photometry of the transient ZTF23absbqun / AT2023zaw, discovered by Karambelkar et al (AstroNote 2023-335) and Sollerman et al. (TNS TR No. 195300) and reported as a fast fading, in...

We report the detection of 100 GHz radio emission coincident with the luminous fast blue optical transient AT2023vth at z=0.0747.

We report the detection of 10 GHz radio emission coincident with the luminous fast blue optical transient AT2023vth at z=0.0747.

Here we present Sloan g' band photometric follow up observations of 8 optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council...

We identify a quickly evolving blue transient with a host-galaxy counterpart, AT2023vth. We encourage spectroscopic follow-up observations to determine the redshift of the transient, which is curre...

Here we present multi-band photometric follow up observations of 9 optical transients using 1.83-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council of...

Here we present photometric follow up observations of 2023uri in M31 discovered by XOSS (J. Xu, et. al) on 2023-10-11 14:12 UT.

We report photometric follow up with the IAC80 telescope of the candidate SN in NGC 6676 AT 2023txu (ATLAS23tma, Gaia23ctg).

We report pre-rise activity in the type IIn SN 2023qdi, discovered by Pan-STARRS on UT 2023-07-26 and with first ZTF detection on UT 2023-07-27. The combined PanSTARRS and ZTF photometry, together...

We report photometric follow-up observations of AT 2023rto (ZTF23abbteqg, ATLAS23str), a supernova candidate in NGC 2838, with one of the 40 cm LCOGT telescopes at Teide Observatory

We report observations of a fast-evolving red transient. AT 2023sva is a likely optical afterglow with a possible GRB counterpart detected by Fermi.

We report photometric follow up of the type II SN 2023rve in NGC 1097 using the Las Cumbres Observatory Global Telescope network DeltaRho 350 telescope and QHY600 CMOS camera at McDonald Observator...

We report observations of the blazar AO 0235+16 with the Large Array Survey Telescope (LAST) during 3 nights, following-up recent reports of optical brightening.

We report observations of a fast-fading red transient. AT2023rdp is a possible optical afterglow, although we note that it is 3 degrees from the Galactic plane.

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 o...

We report observations of a fast-evolving red transient. AT 2023qxj is a likely optical afterglow with a GRB counterpart discovered by Fermi.

Here we present multi-band photometric follow up observations of 8 optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council of...

Here we present photometric follow up observations of 3 optical transients discovered by GOTO (M. Pursiaine., et al.), GEOTS (B. Kumar) and MASTER (T. Pogrosheva., et al.) using 0.33-m Telescope +...

We report spectroscopic observation obtained with ALFOSC at the Nordic Optical Telescope. The spectrum shows a blue continuum with O II absorption lines and narrow emission lines from the host gala...

Here we report pre-rise activity in the candidate supernova AT 2023mtp (ZTF23aalftvv, ATLAS23qbj), that is likely associated with a low-surface-brightness galaxy. AT 2023mtp was discovered by ZTF o...

Multiband photometric observations and their evaluation to instrumental magnitudes were performed using standard Johnson-Cousins filters (B, V, Rc) as well r and g Sloan filters, and not standard o...

We have obtained L filter (square transmission window from 420 to 680 nm) observations of SN2023ixf in M101 discovered by K.Itagaki on 2023-05-19.728. The observations were done using a 130mm refra...

Here we present multi-band photometric follow up observations of 5 optical transients using 1.82-m Plaskett Telescope (E2V, 4K x 2K CCD) at Dominion Astrophysical Observatory of the National Resear...

Here we present multi-band photometric follow up observations of 27 optical transients using 1.82-m Plaskett Telescope (E2V, 4K x 2K CCD) at Dominion Astrophysical Observatory of the National Resea...

We have obtained SDSS u, g and r filter observations of specific optical transients discovered by ZTF (Fremling, C., et al.), Pan-STARRS (Chambers, K.C., et al.), ATLAS (Tonry, J., et al), A. Horti...

We have obtained SDSS g filter observations of specific optical transients discovered by ZTF (Fremling, C., et al.), Pan-STARRS (Chambers, K.C., et al.) and ATLAS (Tonry, J., et al),. The photo...

We have obtained SDSS u, g and r filter observations of SN 2023ixf in M101 discovered by K.Itagaki on 2023-05-19.728. The photometric observations and colour index were done using 1.8-m Plaskett Te...

We report the radio detection of SN2023ixf in the nearby galaxy M101 at 10 GHz

We report that the fast declining transient reported in Astronote 2023-178 by Swain et al. was discovered and first reported to the Transient Name Server by ATLAS (Tonry et al. TNS Astronomical Tra...

We report the detection of luminous radio emission from the fast blue optical transient AT2023fhn at z=0.24.