Ghent University Academic Bibliography

Advanced

The Herschel Virgo Cluster survey, XIX : physical properties of low luminosity FIR sources at z < 0.5

Ciro Pappalardo, Luca Bizzocchi, Jacopo Fritz, Alessandro Boselli, Mederic Boquien, Samuel Boissier, Maarten Baes UGent, Laure Ciesla, Simone Bianchi, Marcel Clemens, et al. (2016) ASTRONOMY & ASTROPHYSICS. 589.
abstract
Context. The star formation rate is a crucial parameter for the investigation galaxy evolution. At low redshift the cosmic star formation rate density declines smoothly, and massive active galaxies become passive, reducing their star formation activity. This implies that the bulk of the star formation rate density at low redshift is mainly driven by low mass objects. Aims. We investigate the properties of a sample of low luminosity far-infrared sources selected at 250 mu m. We have collected data from ultraviolet to far-infrared in order to perform a multiwavelengths analysis. The main goal is to investigate the correlation between star formation rate, stellar mass, and dust mass for a galaxy population with a wide range in dust content and stellar mass, including the low mass regime that most probably dominates the star formation rate density at low redshift. Methods. We define a main sample of similar to 800 sources with full spectral energy distribution coverage between 0 : 15 < lambda < 500 mu m and an extended sample with similar to 5000 sources in which we remove the constraints on the ultraviolet and near-infrared bands. We analyze both samples with two different spectral energy distribution fitting methods: MAGPHYS and CIGALE, which interpret a galaxy spectral energy distribution as a combination of different simple stellar population libraries and dust emission templates. Results. In the star formation rate versus stellar mass plane our samples occupy a region included between local spirals and higher redshift star forming galaxies. These galaxies represent the population that at z < 0.5 quenches their star formation activity and reduces their contribution to the cosmic star formation rate density. The subsample of galaxies with the higher masses (M-* > 3 x 10(10) M-circle dot) do not lie on the main sequence, but show a small off set as a consequence of the decreased star formation. Low mass galaxies (M-* < 1 x 10(10) M-circle dot) settle in the main sequence with star formation rate and stellar mass consistent with local spirals. Conclusions. Deep Herschel data allow the identification of a mixed galaxy population with galaxies still in an assembly phase or galaxies at the beginning of their passive evolution. We find that the dust luminosity is the parameter that allow us to discriminate between these two galaxy populations. The median spectral energy distribution shows that even at low star formation rate our galaxy sample has a higher mid-infrared emission than previously predicted.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
galaxies: evolution, methods: data analysis, galaxies: photometry, galaxies: statistics, infrared: galaxies, submillimeter: galaxies, STAR-FORMATION HISTORY, LOCAL GALAXY ANDROMEDA, HIGH-REDSHIFT GALAXIES, FORMING GALAXIES, MAIN-SEQUENCE, NEARBY GALAXIES, MOLECULAR GAS, MU-M, SOURCE CATALOGS, MULTIWAVELENGTH SEDS
journal title
ASTRONOMY & ASTROPHYSICS
Astron. Astrophys.
volume
589
article number
A11
pages
15 pages
Web of Science type
Article
Web of Science id
000375318300023
JCR category
ASTRONOMY & ASTROPHYSICS
JCR impact factor
5.014 (2016)
JCR rank
10/63 (2016)
JCR quartile
1 (2016)
ISSN
1432-0746
DOI
10.1051/0004-6361/201528008
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8096908
handle
http://hdl.handle.net/1854/LU-8096908
date created
2016-09-29 12:00:17
date last changed
2017-03-01 11:32:01
@article{8096908,
  abstract     = {Context. The star formation rate is a crucial parameter for the investigation galaxy evolution. At low redshift the cosmic star formation rate density declines smoothly, and massive active galaxies become passive, reducing their star formation activity. This implies that the bulk of the star formation rate density at low redshift is mainly driven by low mass objects. 
Aims. We investigate the properties of a sample of low luminosity far-infrared sources selected at 250 mu m. We have collected data from ultraviolet to far-infrared in order to perform a multiwavelengths analysis. The main goal is to investigate the correlation between star formation rate, stellar mass, and dust mass for a galaxy population with a wide range in dust content and stellar mass, including the low mass regime that most probably dominates the star formation rate density at low redshift. 
Methods. We define a main sample of similar to 800 sources with full spectral energy distribution coverage between 0 : 15 {\textlangle} lambda {\textlangle} 500 mu m and an extended sample with similar to 5000 sources in which we remove the constraints on the ultraviolet and near-infrared bands. We analyze both samples with two different spectral energy distribution fitting methods: MAGPHYS and CIGALE, which interpret a galaxy spectral energy distribution as a combination of different simple stellar population libraries and dust emission templates. 
Results. In the star formation rate versus stellar mass plane our samples occupy a region included between local spirals and higher redshift star forming galaxies. These galaxies represent the population that at z {\textlangle} 0.5 quenches their star formation activity and reduces their contribution to the cosmic star formation rate density. The subsample of galaxies with the higher masses (M-* {\textrangle} 3 x 10(10) M-circle dot) do not lie on the main sequence, but show a small off set as a consequence of the decreased star formation. Low mass galaxies (M-* {\textlangle} 1 x 10(10) M-circle dot) settle in the main sequence with star formation rate and stellar mass consistent with local spirals. 
Conclusions. Deep Herschel data allow the identification of a mixed galaxy population with galaxies still in an assembly phase or galaxies at the beginning of their passive evolution. We find that the dust luminosity is the parameter that allow us to discriminate between these two galaxy populations. The median spectral energy distribution shows that even at low star formation rate our galaxy sample has a higher mid-infrared emission than previously predicted.},
  articleno    = {A11},
  author       = {Pappalardo, Ciro and Bizzocchi, Luca and Fritz, Jacopo and Boselli, Alessandro and Boquien, Mederic and Boissier, Samuel and Baes, Maarten and Ciesla, Laure and Bianchi, Simone and Clemens, Marcel and Viaene, S{\'e}bastien and Bendo, George J and De Looze, Ilse and Smith, Matthew WL and Davies, Jonathan},
  issn         = {1432-0746},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  keyword      = {galaxies: evolution,methods: data analysis,galaxies: photometry,galaxies: statistics,infrared: galaxies,submillimeter: galaxies,STAR-FORMATION HISTORY,LOCAL GALAXY ANDROMEDA,HIGH-REDSHIFT GALAXIES,FORMING GALAXIES,MAIN-SEQUENCE,NEARBY GALAXIES,MOLECULAR GAS,MU-M,SOURCE CATALOGS,MULTIWAVELENGTH SEDS},
  language     = {eng},
  pages        = {15},
  title        = {The Herschel Virgo Cluster survey, XIX : physical properties of low luminosity FIR sources at z {\textlangle} 0.5},
  url          = {http://dx.doi.org/10.1051/0004-6361/201528008},
  volume       = {589},
  year         = {2016},
}

Chicago
Pappalardo, Ciro, Luca Bizzocchi, Jacopo Fritz, Alessandro Boselli, Mederic Boquien, Samuel Boissier, Maarten Baes, et al. 2016. “The Herschel Virgo Cluster Survey, XIX : Physical Properties of Low Luminosity FIR Sources at z < 0.5.” Astronomy & Astrophysics 589.
APA
Pappalardo, Ciro, Bizzocchi, L., Fritz, J., Boselli, A., Boquien, M., Boissier, S., Baes, M., et al. (2016). The Herschel Virgo Cluster survey, XIX : physical properties of low luminosity FIR sources at z < 0.5. ASTRONOMY & ASTROPHYSICS, 589.
Vancouver
1.
Pappalardo C, Bizzocchi L, Fritz J, Boselli A, Boquien M, Boissier S, et al. The Herschel Virgo Cluster survey, XIX : physical properties of low luminosity FIR sources at z < 0.5. ASTRONOMY & ASTROPHYSICS. 2016;589.
MLA
Pappalardo, Ciro, Luca Bizzocchi, Jacopo Fritz, et al. “The Herschel Virgo Cluster Survey, XIX : Physical Properties of Low Luminosity FIR Sources at z < 0.5.” ASTRONOMY & ASTROPHYSICS 589 (2016): n. pag. Print.