PNV J00402314+4141381 in M110 is probably a long-period variable
ATel #5424; W. Zheng, University of California, Berkeley, S. B. Cenko, NASA / Goddard Space Flight Center, P. L. Kelly, K. I. Clubb, M. L. Graham, J. Mauerhan, A. V. Filippenko, University of California, Berkeley
on 26 Sep 2013; 22:20 UT
Credential Certification: Weikang Zheng (zwk@umich.edu)
Subjects: Optical, Variables
We obtained a CCD spectrum (range 450-960 nm) of the possible nova
PNV J00402314+4141381 in M110, with the 10-m Keck II telescope
(+ DEIMOS spectrograph) at Keck Observatory on Sep. 10.43 UT.
There are no Balmer emission lines (which are usually seen in
extragalactic novae) detected in the Keck spectrum. Instead,
it shows a red continuum, M-star-like spectrum, which indicates the
object is probably a long-period variable (LPV).
