scholarly journals Near-infrared spectroscopy of quasars atz∼ 3 and estimates of their supermassive black hole masses

2015 ◽  
Vol 68 (1) ◽  
pp. 1 ◽  
Author(s):  
Yuriko Saito ◽  
Masatoshi Imanishi ◽  
Yosuke Minowa ◽  
Tomoki Morokuma ◽  
Toshihiro Kawaguchi ◽  
...  
Keyword(s):  
Black Hole ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Supermassive Black Hole ◽  
Black Hole Masses

scholarly journals Gemini Near-Infrared Spectroscopy of Luminousz~ 6 Quasars: Chemical Abundances, Black Hole Masses, and MgiiAbsorption

2007 ◽  
Vol 134 (3) ◽  
pp. 1150-1161 ◽  
Author(s):  
Linhua Jiang ◽  
Xiaohui Fan ◽  
Marianne Vestergaard ◽  
Jaron D. Kurk ◽  
Fabian Walter ◽  
...  
Keyword(s):  
Black Hole ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Chemical Abundances ◽  
Black Hole Masses

scholarly journals BLACK HOLE MASSES OF INTERMEDIATE-REDSHIFT QUASARS: NEAR-INFRARED SPECTROSCOPY

2009 ◽  
Vol 696 (2) ◽  
pp. 1998-2013 ◽  
Author(s):  
Matthias Dietrich ◽  
Smita Mathur ◽  
Dirk Grupe ◽  
Stefanie Komossa
Keyword(s):  
Black Hole ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Intermediate Redshift ◽  
Black Hole Masses

scholarly journals OPTICAL AND NEAR-INFRARED SPECTROSCOPY OF THE BLACK HOLE SWIFT J1753.5–0127

2015 ◽  
Vol 810 (2) ◽  
pp. 161 ◽  
Author(s):  
Farid Rahoui ◽  
John A. Tomsick ◽  
Mickael Coriat ◽  
Stéphane Corbel ◽  
Felix Fürst ◽  
...  
Keyword(s):  
Black Hole ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared

Central kiloparsec of NGC 1326 observed with SINFONI

2020 ◽  
Vol 638 ◽  
pp. A53
Author(s):  
Nastaran Fazeli ◽  
Gerold Busch ◽  
Andreas Eckart ◽  
Françoise Combes ◽  
Persis Misquitta ◽  
...  
Keyword(s):  
Black Hole ◽  
Galaxy Evolution ◽  
Near Infrared ◽  
Velocity Fields ◽  
Molecular Gas ◽  
Nearby Galaxy ◽  
Stellar Content ◽  
Stellar Rotation ◽  
Supermassive Black Hole ◽  
Integral Field Spectrograph

Gas inflow processes in the vicinity of galactic nuclei play a crucial role in galaxy evolution and supermassive black hole growth. Exploring the central kiloparsec of galaxies is essential to shed more light on this subject. We present near-infrared H- and K-band results of the nuclear region of the nearby galaxy NGC 1326, observed with the integral-field spectrograph SINFONI mounted on the Very Large Telescope. The field of view covers 9″ × 9″ (650 × 650 pc2). Our work is concentrated on excitation conditions, morphology, and stellar content. The nucleus of NGC 1326 was classified as a LINER, however in our data we observed an absence of ionised gas emission in the central r ∼ 3″. We studied the morphology by analysing the distribution of ionised and molecular gas, and thereby detected an elliptically shaped, circum-nuclear star-forming ring at a mean radius of 300 pc. We estimate the starburst regions in the ring to be young with dominating ages of < 10 Myr. The molecular gas distribution also reveals an elongated east to west central structure about 3″ in radius, where gas is excited by slow or mild shock mechanisms. We calculate the ionised gas mass of 8 × 105 M⊙ completely concentrated in the nuclear ring and the warm molecular gas mass of 187 M⊙, from which half is concentrated in the ring and the other half in the elongated central structure. The stellar velocity fields show pure rotation in the plane of the galaxy. The gas velocity fields show similar rotation in the ring, but in the central elongated H2 structure they show much higher amplitudes and indications of further deviation from the stellar rotation in the central 1″ aperture. We suggest that the central 6″ elongated H2 structure might be a fast-rotating central disc. The CO(3–2) emission observations with the Atacama Large Millimeter/submillimeter Array reveal a central 1″ torus. In the central 1″ of the H2 velocity field and residual maps, we find indications for a further decoupled structure closer to a nuclear disc, which could be identified with the torus surrounding the supermassive black hole.

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