TITLE: GCN CIRCULAR NUMBER: 24175 SUBJECT: LIGO/Virgo S190425z: Hobby-Eberly Telescope VIRUS observations of target galaxies. DATE: 19/04/25 11:51:47 GMT FROM: J. Craig Wheeler at U.Texas Austin M. J. B. Rosell, Matthew Shetrone, J. Craig Wheeler, Aaron Zimmerman, Chad Hanna, Lifan Wang, Greg Zeimann, and Richard Matzner on behalf of the LIGO Hobby-Eberly Telescope Response (LIGHETR) team report the spectroscopic observation of the field of S190425z (GCN #24168) 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: 254.780334-5.741986 254.505371-1.822693 253.245255+2.400985 241.236267+23.932871 247.400574+15.658440 Report of the results will be submitted later. -- J. Craig Wheeler Samuel T. and Fern Yanagisawa Regents Professor of Astronomy University and University of Texas System Distinguished Teaching Professor President, American Astronomical Society, 2006-2008 Department of Astronomy 2515 Speedway, Stop C1400 Austin, TX 78712-1205 512-471-6407 http://www.as.utexas.edu/~wheel Supernova Explosions http://www.springer.com/us/book/9783662550526 Cosmic Catastrophes http://ebooks.cambridge.org/ebook.jsf?bid=CBO9780511536625 The Krone Experiment Krone Ascending http://www.amazon.com/Krone-Ascending-ebook/dp/B00926QEGW