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The large-scale environment of low surface brightness galaxies

Rosenbaum, Dominik und Krusch, Elvira und Bomans, Dominik und Dettmar, Ralf-Jürgen (2009) The large-scale environment of low surface brightness galaxies. Astronomy and Astrophysics, 504 (3), Seiten 807-820. EDP Sciences. doi: 10.1051/0004-6361/20077462.

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Kurzfassung

Context. The exact formation scenarios and evolutionary processes that led to the existence of the class of low surface brightness galaxies (LSBs) have not yet been understood completely. There is evidence that the lack of star formation expected to be typical of LSBs can only occur if the LSBs were formed in low-density regions. Aims. Since the environment of LSBs has been studied before only on small scales (below 2 Mpc), a study of the galaxy content in the vicinity of LSB galaxies on larger scales could add a lot to our understanding of the origin of this galaxy class. Methods. We used the spectroscopic main galaxy sample of the SDSS DR4 to investigate the environmental galaxy density of LSB galaxies compared to the galaxy density in the vicinity of high surface brightness galaxies (HSBs). To avoid the influence of evolutionary effects depending of redshift and to minimize completeness issues within the SDSS, we limited the environment studies to the local universe with a redshift of z ≤ 0.1. At first we studied the luminosity distribution of the LSB sample obtained from the SDSS within two symmetric redshift intervals (0.01 < z ≤ 0.055 and 0.055 < z ≤ 0.1). Results. It was found that the lower redshift interval is dominated by small, low-luminosity LSBs, whereas the LSB sample in the higher redshift range mainly consists of larger, more luminous LSBs. This comes from selection effects of the SDSS spectroscopic sample. The environment studies, also divided into these two redshift bins, show that both the low mass, and the more massive LSBs possess an environment with a lower galaxy density than HSBs. The differences in the galaxy density between LSBs and HSBs are significant on scales between 2 and 5 Mpc, the scales of groups and filaments. To quantify this, we have introduced for the first time the LSB-HSB Antibias. The obtained LSB-HSB Antibias parameter has a value of 10%–15%. Conclusions. Fromthese results we conclude that LSBs formed in low-density regions of the initial universe and have drifted until now to the outer parts of the filaments and walls of the large-scale structure. Furthermore, our results, together with actual cosmological simulations, show that LSBs are caused by a mixture of nature and nurture.

elib-URL des Eintrags:https://elib.dlr.de/60541/
Dokumentart:Zeitschriftenbeitrag
Titel:The large-scale environment of low surface brightness galaxies
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Rosenbaum, Dominikdominik.rosenbaum (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Krusch, Elviraelvira.rosenbaum (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Bomans, DominikNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Dettmar, Ralf-JürgenNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:September 2009
Erschienen in:Astronomy and Astrophysics
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:504
DOI:10.1051/0004-6361/20077462
Seitenbereich:Seiten 807-820
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
Bertout, C.aanda.paris (at) obspm.frNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Verlag:EDP Sciences
Status:veröffentlicht
Stichwörter:galaxies: distances and redshifts – galaxies: evolution – galaxies: statistics – galaxies: dwarf
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Photogrammetrie und Bildanalyse (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > Photogrammetrie und Bildanalyse
Hinterlegt von: Rosenbaum, Dr.rer.nat. Dominik
Hinterlegt am:03 Nov 2009 08:14
Letzte Änderung:08 Mär 2018 18:54

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