Journal article
Young, Blue, and Isolated Stellar Systems in the Virgo Cluster. I. 2D Optical Spectroscopy
The Astrophysical journal, Vol.935(1), p.50
08/01/2022
DOI: 10.3847/1538-4357/ac7c6d
Abstract
We use panoramic optical spectroscopy obtained with the Very Large Telescope/MUSE to investigate the nature of five candidate extremely isolated low-mass star-forming regions (Blue Candidates; hereafter, BCs) toward the Virgo cluster of galaxies. Four of the five (BC1, BC3, BC4, and BC5) are found to host several H ii regions and to have radial velocities fully compatible with being part of the Virgo cluster. All the confirmed candidates have mean metallicity significantly in excess of that expected from their stellar mass, indicating that they originated from gas stripped from larger galaxies. In summary, these four candidates share the properties of the prototype system SECCO 1, suggesting the possible emergence of a new class of stellar systems, intimately linked to the complex duty cycle of gas within clusters of galaxies. A thorough discussion of the nature and evolution of these objects is presented in a companion paper, where the results obtained here from the MUSE data are complemented with Hubble Space Telescope (optical) and Very Large Array (Hi) observations.
Details
- Title: Subtitle
- Young, Blue, and Isolated Stellar Systems in the Virgo Cluster. I. 2D Optical Spectroscopy
- Creators
- Michele Bellazzini - Istituto di Astrofisica Spaziale e Fisica Cosmica di BolognaLaura Magrini - Arcetri Astrophysical ObservatoryMichael G. Jones - University of ArizonaDavid J. Sand - University of ArizonaGiacomo Beccari - European Southern ObservatoryGiovanni Cresci - Arcetri Astrophysical ObservatoryKristine Spekkens - Queen's UniversityAnanthan Karunakaran - Queen's UniversityElizabeth A. K. Adams - University of GroningenDennis Zaritsky - University of ArizonaGiuseppina Battaglia - Instituto de Astrofísica de CanariasAnil Seth - University of UtahJohn M. Cannon - Macalester CollegeJackson Fuson - Macalester CollegeJohn L. Inoue - Macalester CollegeBurcin Mutlu-Pakdil - University of ChicagoPuragra Guhathakurta - University of California, Santa CruzRicardo R. Munoz - University of ChilePaul Bennet - Space Telescope Science InstituteDenija Crnojevic - University of TampaNelson Caldwell - Center for Astrophysics Harvard & SmithsonianJay Strader - Michigan State UniversityElisa Toloba - University of the Pacific
- Resource Type
- Journal article
- Publication Details
- The Astrophysical journal, Vol.935(1), p.50
- Publisher
- IOP Publishing Ltd
- DOI
- 10.3847/1538-4357/ac7c6d
- ISSN
- 0004-637X
- eISSN
- 1538-4357
- Number of pages
- 12
- Grant note
- SEV-2017-0709 / State Agency for Research of the Spanish Ministry of Science, Innovation and Universities, through the "Center of Excellence Severo Ochoa" Agencia Estatal de Investigacion del Ministerio de Ciencia en Innovacion (AEI-MICIN) WISE research program - Dutch Research Council (NWO) Natural Sciences and Engineering Research Council of Canada (NSERC) 2009894 / NSF/AST; National Science Foundation (NSF) POSTDOC_21_00845 / Spanish Ministry of Science, Innovation and Universities, through budgetary program 54a Scientific Research and Innovation of the Economic Transformation, Industry, Knowledge and Universities Council of the Regional Government of Andalusia 0101.B-0376A / European Southern Observatory AST2001663 / NSF Astronomy and Astrophysics Postdoctoral Fellowship; National Science Foundation (NSF) 2009894 / Direct For Mathematical & Physical Scien; Division Of Astronomical Sciences; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) AST-1821967; 1813708 / NSF; National Science Foundation (NSF) CEX2019-000920-S; PID2020-118778GB-I00/10.13039/501100011033 / European Regional Development Fund (ERDF); European Union (EU) Ob. F. 1.05.01.01 / INAF-OAS Bologna FB210003 / ANID BASAL project
- Language
- English
- Date published
- 08/01/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627190102771
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