DRAFT
2025-01-23 20:46:29
Type: Object/s-Data/Analysis
Bibcode: 2025TNSAN..31....1W
Photometric follow-up of SN2024gy with BHTOM.space global telescope network
Authors: Lukasz Wyrzykowski (U.Warsaw/NCBJ, PL), P.Mikolajczyk (U.Wroclaw/U.Warsaw, PL), K.Kotysz (U.Wroclaw/U.Warsaw, PL), P.Zielinski (Copernicus University, Torun, PL), F.Dubois(Astrolab, BE), A.Reguitti(INAF, IT), D.Mozdzierski(U.Wroclaw, PL), M.Wicker (U.Warsaw, PL), M.Larma(U.Bonn, DE), U.Pylypenko(U.Warsaw, PL), S.M.Brincat(AAVSO, BE), T.Kvernadze(GNAO, GE), M.Bronikowski(UNG,SI), T.Guver(U.Istanbul, TR), G.Hamed(NRIAG,EY), A.Liakos(NOA, GR), Tom Killestein(U.Turku, FI), F.J.Hambsch(ROAD, BE), M.Siwak (UKEN, PL), J.M.Carrasco (U.Barcelona, SP), O.Michniewicz(UZ, PL), C.Galdies (U.Malta, MA), V.Pinter(CAHA, SP)
Source Group: BHTOM
Keywords: Transient, Optical, Photometry, Time-domain
Abstract:
We report on the optical photometric follow-up of SN2024gy conducted with the BHTOM.space global telescope network.

The BHTOM.space network coordinated an extensive campaign to monitor SN2024gy, Type Ia nearby supernova in NGC4216, discovered by K. Itagaki on 2024-01-04 and reported later with ASAS-SN as ASASSN-24ac. Follow-up observations commenced on Jan 12th, 2024, and continued until December 19th, 2024, when the target was still detected at V=19.6+-0.1 mag. During this period, 1447 measurements were obtained using multiple telescopes. Photometric data were taken in various filters, processed within BHTOM and subsequently transformed into Gaia Synthetic Photometry (GaiaSP) for consistency.

Our data show that SN2024gy reached its peak brightness in I-band around Jan 21st, 2024. Since then, the light curves indicate a consistent decline in brightness across all observed bands, except I-band, which showed a secondary peak around Feb 16th, 2024.

Detailed light curves and associated statistics are presented on the webpage: https://www.astrouw.edu.pl/~wyrzykow/BHTOM/SN2024gy. Further details and the full photometric dataset are available for download by registered users of the BHTOM.space platform. 

Acknowledgments: BHTOM is based on the open-source TOM Toolkit by LCO and has been supported by the European Union's research and innovation programmes under grant agreements No 101004719 (OPTICON-RadioNet Pilot, ORP) and 101131928 (ACME).

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024gy 12:15:51.289 +13:06:56.13 SN Ia 0.001183 NGC4216 12:15:51.289 +13:06:56.13 SN Ia 0.001183
AstroNote Publication Timestamp Title Authors
2024-6 2024-01-05 20:44:30 SN 2024gy, a type Ia SN in NGC 4216, in the Virgo cluster of galaxies: LCOGT photometry and position I. Pérez-Fournon and F. Poidevin (IAC and ULL)

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