The Optical Counterpart of SWIFT J195456.7+261301
ATel #1119; F. M. Walter (Stony Brook), H. E. Bond (STScI)
on 23 Jun 2007; 03:12 UT
Credential Certification: Fred Walter (fwalter@mail.astro.sunysb.edu)
Subjects: Optical, Star, Transient
F.M. Walter (Stony Brook University) and H.E. Bond (STScI) obtained an
low dispersion (R=2000) blue (3700-5300A) spectrum of the star 2.2" from the
position of SWIFT J195456.7+261301 (ATEL #1103) at 2007 21 June 0630 UT.
The spectrum was obtained with the SMARTS 1.5m RC spectrograph at Cerro Tololo.
Conditions were thin clouds; the spectrum is noisy.
The spectral type is about K0; the chromospheric
Ca II H & K lines show prominent emission reversals.
This could be an RS CVn-like system, consistent with Kennea et al.'s conjecture
(ATEL #1103) that this is a flaring coronal star.
