Outlying Hα emitters in SDSS IV MaNGA
Abstract
We have carried out a systematic search for outlying Hα emitters in the entire Data Release 14 of the Sloan Digital Sky Survey (SDSS) IV Mapping Nearby Galaxies at APO (MaNGA) survey. We have discovered six outlying Hα emitters with no bright underlying optical continuum emission in the imaging Data Release 5 from the Dark Energy Camera Legacy Survey (DECaLS) and Data Release 6 of the Mayall z-band Legacy Survey (MzLS) + Beijing–Arizona Sky Survey (BASS). They also show a velocity field that is different from that of the host galaxy. These outlying Hα emitters all have extended structure in the Hα image. Their emission line ratios show that they are photoionized due to an active galactic nucleus (AGN) or a mixture of both an AGN and star formation. Finally, some of them are very likely to be fainter counterparts of Hanny’s Voorwerp-like objects.
- Authors:
-
[1];
- National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Post Bag 3, Ganeshkhind, Pune 411 007, India
- Indian Institute of Astrophysics (IIA), II Block, Koramangala, Bengaluru 560 034, India
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE Office of Science (SC); Alfred P. Sloan Foundation
- OSTI Identifier:
- 1495619
- Alternate Identifier(s):
- OSTI ID: 1527377
- Grant/Contract Number:
- AST-0950945
- Resource Type:
- Published Article
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 485 Journal Issue: 1; Journal ID: ISSN 0035-8711
- Publisher:
- Royal Astronomical Society
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; galaxies: active; galaxies: evolution; galaxies: general; galaxies: star formation; galaxies: statistics
Citation Formats
Bait, Omkar, Wadadekar, Yogesh, and Barway, Sudhanshu. Outlying Hα emitters in SDSS IV MaNGA. United Kingdom: N. p., 2019.
Web. doi:10.1093/mnras/stz433.
Bait, Omkar, Wadadekar, Yogesh, & Barway, Sudhanshu. Outlying Hα emitters in SDSS IV MaNGA. United Kingdom. https://doi.org/10.1093/mnras/stz433
Bait, Omkar, Wadadekar, Yogesh, and Barway, Sudhanshu. Wed .
"Outlying Hα emitters in SDSS IV MaNGA". United Kingdom. https://doi.org/10.1093/mnras/stz433.
@article{osti_1495619,
title = {Outlying Hα emitters in SDSS IV MaNGA},
author = {Bait, Omkar and Wadadekar, Yogesh and Barway, Sudhanshu},
abstractNote = {We have carried out a systematic search for outlying Hα emitters in the entire Data Release 14 of the Sloan Digital Sky Survey (SDSS) IV Mapping Nearby Galaxies at APO (MaNGA) survey. We have discovered six outlying Hα emitters with no bright underlying optical continuum emission in the imaging Data Release 5 from the Dark Energy Camera Legacy Survey (DECaLS) and Data Release 6 of the Mayall z-band Legacy Survey (MzLS) + Beijing–Arizona Sky Survey (BASS). They also show a velocity field that is different from that of the host galaxy. These outlying Hα emitters all have extended structure in the Hα image. Their emission line ratios show that they are photoionized due to an active galactic nucleus (AGN) or a mixture of both an AGN and star formation. Finally, some of them are very likely to be fainter counterparts of Hanny’s Voorwerp-like objects.},
doi = {10.1093/mnras/stz433},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 485,
place = {United Kingdom},
year = {2019},
month = {2}
}
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