TNS Classification Report No. 17622 [ 2024TNSCR2827....1K ]
Date Received (UTC): 2024-08-08 19:12:09 Sender: Grace Katusiime
Group: CET-3PO
Grace Katusiime, Marco A. Gómez-Muñoz, Nadejda Blagorodnova, Hugo Tranin, Maxime Wavasseur, Gerard Garcia (ICCUB), David Jones (IAC), Viraj Karambelkar (Caltech) report/s a classification of object: AT 2024mxe
Type: Gap
Remarks: Despite having a poor signal-to-noise ratio, the spectrum shows a narrow H-alpha line but lacks broad supernova features. Given its estimated absolute magnitude of -14.6, we conclude that AT 2024mxe is not a supernova but rather a transient in the luminosity gap between novae and supernovae.
The following Classification spectrum was provided:
Obsdate: 2024-07-12 03:21:36
Instrument: CAFOS
Telescope: Calar Alto 2.2m Telescope
Remarks: 15 UT was obtained with the low-resolution CAFOS instrument mounted on the 2.2 m telescope at Calar Alto Observatory. The observations were made with the G-200 grism and a 2 arcsec slit, with a total exposure time of 2700s. The data reduction was done using IRAF. Given the location of the transient on top of a bright host, the background was carefully adjusted to minimize host contamination. We performed flux calibration using the standard star HD 93521.
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2024mxe
Date Received (UTC): 2024-08-08 19:12:09 Sender: Grace Katusiime
Group: CET-3PO
Grace Katusiime, Marco A. Gómez-Muñoz, Nadejda Blagorodnova, Hugo Tranin, Maxime Wavasseur, Gerard Garcia (ICCUB), David Jones (IAC), Viraj Karambelkar (Caltech) report/s a classification of object: AT 2024mxe
Type: Gap
Remarks: Despite having a poor signal-to-noise ratio, the spectrum shows a narrow H-alpha line but lacks broad supernova features. Given its estimated absolute magnitude of -14.6, we conclude that AT 2024mxe is not a supernova but rather a transient in the luminosity gap between novae and supernovae.
The following Classification spectrum was provided:
Obsdate: 2024-07-12 03:21:36
Instrument: CAFOS
Telescope: Calar Alto 2.2m Telescope
Remarks: 15 UT was obtained with the low-resolution CAFOS instrument mounted on the 2.2 m telescope at Calar Alto Observatory. The observations were made with the G-200 grism and a 2 arcsec slit, with a total exposure time of 2700s. The data reduction was done using IRAF. Given the location of the transient on top of a bright host, the background was carefully adjusted to minimize host contamination. We performed flux calibration using the standard star HD 93521.
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2024mxe