NDLI: Stellar populations of classical and pseudo-bulges for a sample of isolated spiral galaxies

Content Provider	Springer Nature Link
Author	Zhao, Yinghe
Copyright Year	2011
Abstract	In this paper we present the stellar population synthesis results for a sample of 75 bulges in isolated spiral Sb-Sc galaxies, using the spectroscopic data from the Sloan Digital Sky Survey and the STARLIGHT code. We find that both pseudo-bulges and classical bulges in our sample are predominantly composed of old stellar populations, with mean mass-weighted stellar age around 10 Gyr. While the stellar population of pseudo-bulges is, in general, younger than that of classical bulges, the difference is not significant, which indicates that it is hard to distinguish pseudo-bulges from classical bulges, at least for these isolated galaxies, only based on their stellar populations. Pseudo-bulges have star formation activities with relatively longer timescale than classical bulges, indicating that secular evolution is more important in this kind of systems. Our results also show that pseudo-bulges have a lower stellar velocity dispersion than their classical counterparts, which suggests that classical bulges are more dispersion-supported than pseudo-bulges.
Starting Page	719
Ending Page	728
Page Count	10
File Format	PDF
ISSN	0004640X
Journal	Astrophysics and Space Science
Volume Number	337
Issue Number	2
e-ISSN	1572946X
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-10-05
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Galaxies Spiral-galaxies Evolution-galaxies Stellar content-galaxies Bulges Astronomy, Observations and Techniques
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Stellar populations of classical and pseudo-bulges for a sample of isolated spiral galaxies

Stellar populations in bulges of spiral galaxies

Stellar Populations in Bulges of Spiral Galaxies

Stellar Populations in Barred Galaxies

Barlenses in the CALIFA survey: Combining photometric and stellar population analyses

Study of stellar populations in the bulges of barred galaxies

Stellar population gradients in bulges along the Hubble sequence — II. Relations with galaxy properties

Stellar population and kinematic profiles in spiral bulges and discs: population synthesis of integrated spectra

Stellar population models for young stellar clusters

Stellar populations of classical and pseudo-bulges for a sample of isolated spiral galaxies

Similar Documents

Stellar populations of classical and pseudo-bulges for a sample of isolated spiral galaxies

Stellar populations in bulges of spiral galaxies

Stellar Populations in Bulges of Spiral Galaxies

Stellar Populations in Barred Galaxies

Barlenses in the CALIFA survey: Combining photometric and stellar population analyses

Study of stellar populations in the bulges of barred galaxies

Stellar population gradients in bulges along the Hubble sequence — II. Relations with galaxy properties

Stellar population and kinematic profiles in spiral bulges and discs: population synthesis of integrated spectra

Stellar population models for young stellar clusters

Stellar populations of classical and pseudo-bulges for a sample of isolated spiral galaxies