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Galactic dynamics and DM profile of NGC1380 with ALMA and VLT/MUSE

Published online by Cambridge University Press:  14 May 2020

Takafumi Tsukui Open the ORCID record for Takafumi Tsukui [Opens in a new window] ,
Satoru Iguchi  and
Kyoko Onishi
Takafumi Tsukui
Affiliation:
SOKENDAI, The Graduate University for Advanced Studies emails: t.tsukui@nao.ac.jp, s.iguchi@nao.ac.jp National Astronomical Observatory of Japan (NAOJ), National Institute of Natural Sciences (NINS)
Satoru Iguchi
Affiliation:
SOKENDAI, The Graduate University for Advanced Studies emails: t.tsukui@nao.ac.jp, s.iguchi@nao.ac.jp National Astronomical Observatory of Japan (NAOJ), National Institute of Natural Sciences (NINS)
Kyoko Onishi
Affiliation:
Chalmers University of Technology
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Abstract

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In order to understand the interaction between dark matter and baryonic matter in the galaxy evolution history, it is fundamental to constrain dark matter (DM) distribution in galaxies. However, it is difficult to constrain DM profile in the central region of early type galaxy because of the lack of extended neutral hydrogen gas and the degeneracy between dynamical stellar M/L and DM profile. To resolve this difficulty, we conducted combined analysis of ALMA cold molecular gas kinematics and MUSE stellar kinematics of early type fast rotator galaxy NGC1380. In addition, we used HST image to trace the stellar luminosity distribution. With the help of high resolution of ALMA image and large field of view of MUSE, we derived the central BH mass, stellar bulge, disk and DM profile.

Keywords

DMgalaxies: kinematics and dynamicshalostructure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S353: Galactic Dynamics in the Era of Large Surveys , June 2019 , pp. 248 - 252
Copyright
© International Astronomical Union 2020

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