NDLI: Importance of Small Telescopes in the Understanding of ActiveHot Stars Physics

Content Provider	Springer Nature Link
Author	Stee, Ph.
Copyright Year	2000
Abstract	Active hot stars (Be stars) have been observed and studied for more thantwo decades. They exhibit hydrogen emission lines in the visibledomain and often some emission lines of singly ionized metals.These emissions originate in a circumstellar envelope produced bya strong radiative stellar wind. Since the discovery of the prototype star of this class (γ Cas) by Father A. Secchi in 1866, the basic physical properties of these objects are still poorly known. These stars are also very bright (most of them can be found in the Bright Star Catalogue) which make them good targetsfor small telescopes studies. In the following I will focus on some studies that can be done using a 40 cm telescope class. Then I willexplain how small telescopes can be combined in an interferometric network in order to reach one milliarcsecond (mas) angular resolutioneven if each telescope's aperture can be smaller thanten centimeters. With this technics it becomes possible to measurevery small and faint structures on the stellar surface of starsother than our sun.
Starting Page	225
Ending Page	232
Page Count	8
File Format	PDF
ISSN	0004640X
Journal	Astrophysics and Space Science
Volume Number	273
Issue Number	1-4
e-ISSN	1572946X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2000-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy
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

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