SDSS IV MaNGA: discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate?

Lihwai Lin; Jing-Hua Lin; Chin-Hao Hsu; Hai Fu; Song Huang; Sebastián F. Sánchez; Stephen Gwyn; Joseph D. Gelfand; Edmond Cheung; Karen Masters; Sébastien Peirani; Wiphu Rujopakarn; David V. Stark; Francesco Belfiore; M. S. Bothwell; Kevin Bundy; Alex Hagen; Lei Hao; Shan Huang; David Law; Cheng Li; Chris Lintott; Roberto Maiolino; Alexandre Roman-Lopes; Wei-Hao Wang; Ting Xiao; Fangting Yuan; Dmitry Bizyaev; Elena Malanushenko; Niv Drory; J. G. Fernández-Trincado; Zach Pace; Kaike Pan; Daniel Thomas

doi:10.3847/1538-4357/837/1/32

SDSS IV MaNGA: discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate?

Lihwai Lin, Jing-Hua Lin, Chin-Hao Hsu, Hai Fu, Song Huang, Sebastián F. Sánchez, Stephen Gwyn, Joseph D. Gelfand, Edmond Cheung, Karen Masters, Sébastien Peirani, Wiphu Rujopakarn, David V. Stark, Francesco Belfiore, M. S. Bothwell, Kevin Bundy, Alex Hagen, Lei Hao, Shan Huang, David LawCheng Li, Chris Lintott, Roberto Maiolino, Alexandre Roman-Lopes, Wei-Hao Wang, Ting Xiao, Fangting Yuan, Dmitry Bizyaev, Elena Malanushenko, Niv Drory, J. G. Fernández-Trincado, Zach Pace, Kaike Pan, Daniel Thomas

Institute of Cosmology & Gravitation

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Abstract

We report the discovery of a mysterious giant Halpha blob that is ~8 kpc away from the main MaNGA target 1-24145, one component of a dry galaxy merger, identified in the first-year SDSS-IV MaNGA data. The size of the Halpha blob is ~3-4 kpc in radius, and the Halpha distribution is centrally concentrated. However, there is no optical continuum counterpart in deep broadband images reaching ~26.9 mag per arcsec sq in surface brightness. We estimate that the masses of ionized and cold gases are 3.3 x 10^5 Msun and galaxy (UDG) interacting with MaNGA 1-24145 that further induces the gas inflow to fuel the AGN in MaNGA 1-24145.

Original language	English
Journal	The Astrophysical Journal
Volume	837
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/837/1/32
Publication status	Published - 28 Feb 2017

Keywords

astro-ph.GA
galaxies: evolution
galaxies: interactions
galaxies: peculiar

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Lin_2017_ApJ_837_32
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Lin, L., Lin, J-H., Hsu, C-H., Fu, H., Huang, S., Sánchez, S. F., Gwyn, S., Gelfand, J. D., Cheung, E., Masters, K., Peirani, S., Rujopakarn, W., Stark, D. V., Belfiore, F., Bothwell, M. S., Bundy, K., Hagen, A., Hao, L., Huang, S., ... Thomas, D. (2017). SDSS IV MaNGA: discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate? The Astrophysical Journal, 837(1). https://doi.org/10.3847/1538-4357/837/1/32

@article{a0ad2a1947c743d4910a8589f2d8c7e6,

title = "SDSS IV MaNGA: discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate?",

abstract = "We report the discovery of a mysterious giant Halpha blob that is ~8 kpc away from the main MaNGA target 1-24145, one component of a dry galaxy merger, identified in the first-year SDSS-IV MaNGA data. The size of the Halpha blob is ~3-4 kpc in radius, and the Halpha distribution is centrally concentrated. However, there is no optical continuum counterpart in deep broadband images reaching ~26.9 mag per arcsec sq in surface brightness. We estimate that the masses of ionized and cold gases are 3.3 x 10^5 Msun and galaxy (UDG) interacting with MaNGA 1-24145 that further induces the gas inflow to fuel the AGN in MaNGA 1-24145.",

keywords = "astro-ph.GA, galaxies: evolution, galaxies: interactions, galaxies: peculiar",

author = "Lihwai Lin and Jing-Hua Lin and Chin-Hao Hsu and Hai Fu and Song Huang and S{\'a}nchez, {Sebasti{\'a}n F.} and Stephen Gwyn and Gelfand, {Joseph D.} and Edmond Cheung and Karen Masters and S{\'e}bastien Peirani and Wiphu Rujopakarn and Stark, {David V.} and Francesco Belfiore and Bothwell, {M. S.} and Kevin Bundy and Alex Hagen and Lei Hao and Shan Huang and David Law and Cheng Li and Chris Lintott and Roberto Maiolino and Alexandre Roman-Lopes and Wei-Hao Wang and Ting Xiao and Fangting Yuan and Dmitry Bizyaev and Elena Malanushenko and Niv Drory and Fern{\'a}ndez-Trincado, {J. G.} and Zach Pace and Kaike Pan and Daniel Thomas",

note = "13 pages, 11 figures, ApJ accepted",

year = "2017",

month = feb,

day = "28",

doi = "10.3847/1538-4357/837/1/32",

language = "English",

volume = "837",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing",

number = "1",

}

Lin, L, Lin, J-H, Hsu, C-H, Fu, H, Huang, S, Sánchez, SF, Gwyn, S, Gelfand, JD, Cheung, E, Masters, K, Peirani, S, Rujopakarn, W, Stark, DV, Belfiore, F, Bothwell, MS, Bundy, K, Hagen, A, Hao, L, Huang, S, Law, D, Li, C, Lintott, C, Maiolino, R, Roman-Lopes, A, Wang, W-H, Xiao, T, Yuan, F, Bizyaev, D, Malanushenko, E, Drory, N, Fernández-Trincado, JG, Pace, Z, Pan, K & Thomas, D 2017, 'SDSS IV MaNGA: discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate?', The Astrophysical Journal, vol. 837, no. 1. https://doi.org/10.3847/1538-4357/837/1/32

TY - JOUR

T1 - SDSS IV MaNGA

T2 - discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate?

AU - Lin, Lihwai

AU - Lin, Jing-Hua

AU - Hsu, Chin-Hao

AU - Fu, Hai

AU - Huang, Song

AU - Sánchez, Sebastián F.

AU - Gwyn, Stephen

AU - Gelfand, Joseph D.

AU - Cheung, Edmond

AU - Masters, Karen

AU - Peirani, Sébastien

AU - Rujopakarn, Wiphu

AU - Stark, David V.

AU - Belfiore, Francesco

AU - Bothwell, M. S.

AU - Bundy, Kevin

AU - Hagen, Alex

AU - Hao, Lei

AU - Huang, Shan

AU - Law, David

AU - Li, Cheng

AU - Lintott, Chris

AU - Maiolino, Roberto

AU - Roman-Lopes, Alexandre

AU - Wang, Wei-Hao

AU - Xiao, Ting

AU - Yuan, Fangting

AU - Bizyaev, Dmitry

AU - Malanushenko, Elena

AU - Drory, Niv

AU - Fernández-Trincado, J. G.

AU - Pace, Zach

AU - Pan, Kaike

AU - Thomas, Daniel

N1 - 13 pages, 11 figures, ApJ accepted

PY - 2017/2/28

Y1 - 2017/2/28

N2 - We report the discovery of a mysterious giant Halpha blob that is ~8 kpc away from the main MaNGA target 1-24145, one component of a dry galaxy merger, identified in the first-year SDSS-IV MaNGA data. The size of the Halpha blob is ~3-4 kpc in radius, and the Halpha distribution is centrally concentrated. However, there is no optical continuum counterpart in deep broadband images reaching ~26.9 mag per arcsec sq in surface brightness. We estimate that the masses of ionized and cold gases are 3.3 x 10^5 Msun and galaxy (UDG) interacting with MaNGA 1-24145 that further induces the gas inflow to fuel the AGN in MaNGA 1-24145.

AB - We report the discovery of a mysterious giant Halpha blob that is ~8 kpc away from the main MaNGA target 1-24145, one component of a dry galaxy merger, identified in the first-year SDSS-IV MaNGA data. The size of the Halpha blob is ~3-4 kpc in radius, and the Halpha distribution is centrally concentrated. However, there is no optical continuum counterpart in deep broadband images reaching ~26.9 mag per arcsec sq in surface brightness. We estimate that the masses of ionized and cold gases are 3.3 x 10^5 Msun and galaxy (UDG) interacting with MaNGA 1-24145 that further induces the gas inflow to fuel the AGN in MaNGA 1-24145.

KW - astro-ph.GA

KW - galaxies: evolution

KW - galaxies: interactions

KW - galaxies: peculiar

U2 - 10.3847/1538-4357/837/1/32

DO - 10.3847/1538-4357/837/1/32

M3 - Article

SN - 0004-637X

VL - 837

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1

ER -

SDSS IV MaNGA: discovery of an Hα blob associated with a dry galaxy pair - ejected gas or a 'dark' galaxy candidate?

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Keywords

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