Possible accretion-powered flare in the T Tauri star ASASSN-V J161336.51-250347.3
ATel #16696; Kirill Sokolovsky (UIUC), Stanislav Korotkiy (Astroverty, Ka-Dar), Nikolay Potapov, Sergei Ostapenko
on 8 Jul 2024; 22:32 UT
Credential Certification: Kirill Sokolovsky (kirx@scan.sai.msu.ru)
Subjects: Optical, Transient, Young Stellar Object
The young stellar object ASASSN-V J161336.51-250347.3
= 2MASS J16133650-2503473 was found in outburst having
an unfiltered magnitude of CV=12.74 (+/-0.05) on 2024-07-08.848 UT.
The outburst was detected using a wide-field New Milky Way survey
camera: 135mm f/2.0 telephoto lens + SBIG ST-8300M CCD
(Sokolovsky, Korotkiy & Lebedev 2014, ASPC, 490, 395;
https://scan.sai.msu.ru/nmw/ ). ASAS-SN data (Hart et al.
arXiv:2304.03791; Shappee et al. 2014, ApJ, 788, 48) show that
the object brightened from g=15.6 on 2024-06-25.008 to g=13.2
on 2024-07-07.171. ASAS-SN also recorded a previous outburst
peaking at g=12.2 on 2019-07-10.207, lasting about 130 days.
The object is listed in the AAVSO VSX as a Classical T Tauri star
with a spectral type M3.5 (Luhman & Mamajek 2012, ApJ, 758, 31).
We suggest that the current brightening is the beginning of
an EXor-type outburst, the second one recorded for this object.
The New Milky Way survey images of ASASSN-V J161336.51-250347.3
