Swift observation of Nova Orionis 2019 #1 (PNV J06095740+1212255)
ATel #13029; K. Sokolovsky, E. Aydi, L. Chomiuk, A. Kawash, J. Strader (MSU), K. Mukai (NASA/GSFC)
on 14 Aug 2019; 18:05 UT
Credential Certification: Kirill Sokolovsky (kirx@scan.sai.msu.ru)
Subjects: Ultra-Violet, X-ray, Nova, Transient
The optical transient PNV J06095740+1212255 was discovered by
S. Fujikawa on 2018-08-07.7984 UT having the unfiltered magnitude
of 9.4. It was confirmed as a fast He/N type nova on 2019-08-14.44
with the 4.1m SOAR telescope + Goodman spectrograph (ATel #13027).
Swift observed PNV J06095740+1212255 for 1.5ks on 2019-08-14.172.
Swift/XRT detected no X-ray source at the position of the transient
with an upper limit of 0.004 cts/s. Assuming power law emission
with the photon index of 2 and the total HI column density
in the nova direction of 5.22x10^21 cm^-2, this translates to
the unabsorbed 0.3-10 keV flux limit of 3.3x10^-13 ergs/cm^2/s.
Alternatively, assuming the photon index of 1.7 and a "typical"
HI column density of 3x10^20 cm^-2 we obtain the unabsorbed
flux limit of 1.7x10^-13 ergs/cm^2/s.
The nova is detected in the ultraviolet at the UVOT magnitude
UVW2= 13.80 +/-0.02 (Vega system). The measured astrometric
position of the ultraviolet source coincides within the 0.2"
uncertainties with the proposed progenitor
Gaia DR2 3342442918113299328.
We thank the Neil Gehrels Swift Observatory team and PI, Brad Cenko,
for rapid scheduling of this ToO observation.
CBAT Transient Object Followup Reports page for PNV J06095740+1212255
