PI: Mischa Schirmer, Gemini Observatory, firstname.lastname@example.org
Address: Gemini Observatory, Colina El Pino s/n, La Serena Chile
CoI: Rebecca Davies, Max-Planck-Institut fuer extraterrestrische Physik
CoI: James Turner, Gemini Observatory
CoI: Hai Fu, U. of Iowa
CoI: William Keel, University of Alabama
CoI: Kohei Ichikawa, Columbia U.
CoI: Taiki Kawamuro, NAOJ
CoI: Claudio Ricci, Pontificia Universidad Catolica de Chile
CoI: Sangeeta Malhotra, Arizona State U.
CoI: Nancy Levenson, STScI
CoI: Paul Torrey, Harvard-Smithsonian Center for Astrophysics
Title: Probing low-redshift Lyman-alpha blobs with deep 3D spectroscopy
Abstract: Lyman-alpha blobs (LABs) are among the most luminous nebulae known in the Universe. We have shown in 2016 that they can still exist at low redshifts of z~0.3, where they are ionized by AGN. Far-UV and optical ionization echoes in these systems show that the AGN in these LABs must have faded dramatically over the last 1,000-100,000 years. We have selected the six most Ly-alpha luminous LABs at low redshift for detailed multi-wavelength follow-up. This proposal aims at securing deep 3D spectra with the GMOS IFU for the remaining three of the six targets, supporting detailed emission line diagnostics to study the ionization mechanisms and history, outflows, AGN feedback and mergers. The data are complemented by ongoing far-UV HST observations as well as soft and hard X-ray data taken with Chandra and NuSTAR.
Program Type: Standard/Extragalactic
Run 1 (2018A): GEM-NQ/GMOSN -- 21.8hrs band 2 (GN-2018A-Q-207 )
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360