8-12 juin, 2014

Résumé

AGN Reverberation Mapping with the BOSS Spectrograph and CFHT+MegaCam

Patrick Hall (York University)

Yue Shen (Harvard, Carnegie), Niel Brandt (Penn State), et al.

Accurately measured masses of supermassive black holes (SMBHs) are cornerstones for understanding the coevolution of active galactic nuclei (AGN) and massive galaxies. Mass estimates for distant SMBHs are tied to relationships derived from <50 AGN at z<0.3 with masses measured from reverberation mapping (RM). In RM, a SMBH mass is measured by properly combining an emission-line width with the distance of the line-emitting region from the SMBH, determined from the time lag between variations of an AGN's ultraviolet/optical continuum and variations of the emission line. We are using the BOSS multi-object spectrograph on the SDSS 2.5-meter telescope and the MegaCam imager on the CFHT to conduct a RM survey of 849 AGN from Dec. 2013 - July 2014. We will report on progress toward our goal of measuring >70 RM masses out to z=2, and on the availability of the imaging and spectroscopy to the community for other scientific uses.

Mode de présentation: Affiche