Spectroscopic Variability of Changing-Look Quasar Candidates
Abstract
The Time Domain Spectroscopic Survey (TDSS) is accumulating multiple spectra for over 10,000 quasars over the SDSS survey area. We present an analysis of a small fraction of these sources that were discovered by TDSS to be extremely variable. We use photometry from SDSS, Pan-STARRS, PTF, and CRTS to constrain the timescales, and spectroscopy from TDSS to measure the continuum and Balmer line variability that may be linked to state changes in quasars. The SAO REU program is funded in part by the National Science Foundation REU and Department of Defense ASSURE programs under NSF Grant no. AST-1852268, and by the Smithsonian Institution.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23530522M