PI: Ai-Lei Sun, ASIAA,
Address: 11F of ASMAB, No.1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, R.O.C. Taiwan
CoI: Andy Goulding, Princeton U.
CoI: Jenny Greene, Princeton U.
CoI: Alisabeth Marsteller, Princeton U.
Title: Are there bi-polar AGN outflows? -- IFU study of extended outflow candidates selected with Subaru Hyper-Suprime Cam survey
Abstract: Feedback from active galactic nuclei (AGN) is now a standard ingredient in galaxy formation models. Recent observations of luminous obscured AGN have found that powerful AGN are indeed capable of driving galactic-scale outflows, but much remains unknown regarding their launching mechanism. One of the puzzles is the absence of the bi-polar morphology predicted by models of wind driven outflows. To study the geometry of AGN outflows, we have identified a sample of promising extended/bi-polar outflow candidates using the newest Subaru Hyper-Suprime Cam (HSC) imaging Survey. The superb image quality of HSC allows mapping of the strong AGN emission lines on scales of tens of kpc, revealing intriguing morphologies suggestive of bi-polar outflows. As a pilot study, we propose to observe four of the extended outflow candidates at z ∼ 0.4 with GMOS IFU in 8 hr integration time. The detailed 2D kinematics will allow us to constrain the geometry, size, and energetics of the outflows. This data is also important to calibrate and optimize the selection with HSC broadband images. This unique sample will give us a fresh view of the outflow phenomenon and improve on our understandings of AGN feedback.
Program Type: Standard/Extragalactic
Run 2 (2017B): GEM-SQ/GMOSS -- 11hrs band 3 (GS-2017B-Q-78)
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360