SHERP

Black Hole Mass Scaling Relations of 10 Pseudo-Bulge Galaxies
10개 수도벌지 은하의 블랙홀 질량 상관관계

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Authors
조국섭
Advisor
우종학
Major
자연과학대학 물리·천문학부(천문학전공)
Issue Date
2016
Publisher
서울대학교 대학원
Keywords
coevolutionpseudo-bulgesthe m-sigma relationgas kinematicsinclination effect
Description
학위논문 (석사)-- 서울대학교 대학원 : 물리·천문학부 천문학전공, 2016. 8. 우종학.
Abstract
We present stellar and gas kinematics of 10 pseudo-bulge galaxies, in order to investigate the correlation between black hole mass (MBH) and galaxy properties, i.e., the MBH-σ∗ relation (where σ∗ is stellar velocity dispersion) using high quality spatially resolved spectra. We observed 9 galaxies with the Faint Object Camera and Spectrograph (FOCAS) at the Subaru telescope, and the other with the Inamori Magellan Areal Camera and Spectrograph (IMACS) at the Magellan telescope. For all galaxies, we obtained spatially resolved data along the major axis and we measured the radial velocity and velocity dispersion from stellar continuum and gas emission lines. We do not find a significant evidence that pseudo-bulge galaxies offset from the MBH-σ∗ relation based on the spatially resolved measurements. To investigate the inclination effects on the effective sigma (σe), which defines the MBH-σ∗ relation, we calculated inclinationcorrected σ∗. We suggest to use rotation-free σ∗ especially for galaxies with a rotation dominant bulge, i.e., pseudo-bulges. Additionally, we obtained velocity and velocity dispersion profiles of [OIII] and Hβ emission lines to investigate specific properties of pseudo-bulge galaxies. Gas kinematics are generally following stellar kinematics, which can be well explained by the gravitational potential of the host galaxies.
Language
English
URI
http://hdl.handle.net/10371/131673
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College of Natural Sciences (자연과학대학)Dept. of Physics and Astronomy (물리·천문학부)Astronomy (천문학전공)Theses (Master's Degree_천문학전공)
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