[vsnet-grb-info 22179] LIGO/Virgo S190426c: Hobby-Eberly Telescope VIRUS observations of target galaxies.
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Sat Apr 27 20:33:39 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 24278
SUBJECT: LIGO/Virgo S190426c: Hobby-Eberly Telescope VIRUS observations of target galaxies.
DATE: 19/04/27 11:31:19 GMT
FROM: J. Craig Wheeler at U.Texas Austin <wheel at astro.as.utexas.edu>
M. J. B. Rosell, Steven Janowiecki, Karl Gebhardt, and J. Craig Wheeler,
on behalf of the LIGO Hobby-Eberly Telescope Response (LIGHETR) team,
report the spectroscopic observation of the field of S190426c (GCN
#24208) with the VIRUS IFU array. We sampled a prioritized list of 5
galaxies from the GLADE catalog that overlapped with the LIGO
probability map and the observable pupil of the HET. The resulting data
cube covers the wavelength 350 to 550 nm with a resolving power of 750.
The effective limiting magnitude in the B band was 22 magnitudes. Each
field is 50x50 arc seconds. We observed, in order, galaxies:
305.064514+47.343445
306.223328+56.174004
310.997894+53.242306
306.510681+55.881222
309.586700+59.537640
We note that 310.997894+53.242306 is a known AGN. We find no obvious
evidence of an optical transient. A more detailed report of the results
will be submitted later.
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