Search the XMM-Newton archival data for the progenitor of SN 2024ggi
ATel #16595; Yusuke Komura, Kai Matsunaga, Hiroyuki Uchida, and Teruaki Enoto (Kyoto University)
on 19 Apr 2024; 10:27 UT
Credential Certification: Teruaki Enoto (teruaki.enoto@gmail.com)
Subjects: X-ray, Supernovae
Following the reports on the multiwavelength emission from the supernova SN2024ggi (e.g., AstroNote 2024-100, Atel #16586, #16587, #16588), we searched the archival XMM-Newton observation obtained in 2017 (ObsID 0795660101) for X-ray emission from its progenitor at around the sky position of SN2024ggi (RA=11:18:22.091, Dec=-32:50:15.29). We made an X-ray image with a total effective exposure of 27 ks. There was no apparent X-ray source at the SN position within 4 arcsecs, the astrometric position accuracy of XMM-Newton EPIC (e.g., Pavan et al. AA 526,A122, 2011). A faint point-like X-ray source was detected by 9 arcsec apart from the SN position at RA=11:18:22 and Dec=-32:50:05, which is outside the astrometric accuracy of XMM-Newton. According to our spectroscopy around the SN position, the 0.3-10 keV flux of the progenitor is below the sensitivity limit of XMM-Newton EPIC (<2e-14 erg/s/cm2 for 30 ks; cf. XMM User's Handbook).
The extracted X-ray sky images of the host galaxy NGC3621 are available in the following link. The 0.4-1.0 keV (red) and 1.0-3.0 keV (green) images are compared with the DSS image (blue).
XMM-Newton X-ray image of NGC 3621 before SN 2024ggi
