The Rapid Reddening and Featureless Optical Spectra of the Optical Counterpart of GW170817, AT 2017gfo, during the First Four Days

Year2017
JournalThe Astrophysical Journal Letters
AuthorMcCully, Curtis, Hiramatsu, Daichi, Howell, D. Andrew, Hosseinzadeh, Griffin, Arcavi, Iair, Kasen, Daniel, Barnes, Jennifer, Shara, Michael M., Williams, Ted B., Väisänen, Petri, Potter, Stephen B., Romero-Colmenero, Encarni, Crawford, Steven M., Buckley, David A. H., Cooke, Jeffery, Andreoni, Igor, Pritchard, Tyler A., Mao, Jirong, Gromadzki, Mariusz, Burke, Jamison
Bibcode2017ApJ...848L..32M
TelescopeGS
InstrumentGMOS-S
PartnerUS/DD
CountryUSA
Program IDGS-2017B-Q-14, GS-2017B-DD-1, GS-2017B-Q-30

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