MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02314nam a2200241Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
IN-BaIIA |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20211110170651.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
211028s9999 xx 000 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
IIA Library |
| 080 ## - UNIVERSAL DECIMAL CLASSIFICATION NUMBER |
|---|
| Universal Decimal Classification number |
043:524.33 |
| Item number |
MOH |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Mohin, S |
| 9 (RLIN) |
18487 |
| Relator term |
Author |
| 245 #0 - TITLE STATEMENT |
|---|
| Title |
Studies in RS canum venaticorum type stars |
| Remainder of title |
a thesis submitted for the degree of Doctor of Philosophy in the faculty of science, Punjab University, Chandigarh |
| Statement of responsibility, etc. |
S. Mohin |
| Medium |
[Ph.D Thesis] |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
|---|
| Place of publication, distribution, etc. |
Bangalore |
| Name of publisher, distributor, etc. |
Indian Institute of Astrophysics |
| Date of publication, distribution, etc. |
1992 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
v,165p. |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Thesis Supervisor R. K. Kochhar |
| 502 ## - DISSERTATION NOTE |
|---|
| Degree type |
Doctor of Philosophy |
| Name of granting institution |
Indian Institute of Astrophysics, Bangalore\ |
| Year degree granted |
1992 |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
It had been customary to divide variable stars into three classes: eruptive, pulsating, and eclipsing. It has recently been realized that there exists a fourth class of 'rotating variable stars' to which RS Canum Venaticorum systems belong. The most important characteristic of RS CVn systems in the optical region is the variable light curve arising from rotational modulation by spotted areas on the stellar photosphere. The present work was started with the aim of obtaining multiband photometric observations covering the entire phases of light curve for a few selected RS CVn stars and to use our database in conjunction with published<br/>observations to numerically model the light curves with a view to deriving physical parameters. Though RS eVn characteristics were first detected in double-lined spectroscopic binaries, later many single-lined spectroscopic binaries<br/>were found. We have selected two single-lined and two double-lined binaries for our investigation. All four are non-eclipsing close binaries: DM UMa and II Peg are single-lined, whereas V711 Tau and UX Ari are doublelined. All these objects are known to show HO:' as pure emission feature above the continuum at all times. This is a clear signature of chromospheric<br/>activity. So it was decided to supplement the photometric data with H 0'. spectroscopy. The thesis has been divided into eight chapters. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Ph.D Thesis |
| 9 (RLIN) |
1344 |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Variable Stars |
| 9 (RLIN) |
1140 |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
R. K. Kochhar |
| Relator term |
Supervisor |
| 9 (RLIN) |
48881 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
|---|
| Uniform Resource Identifier |
<a href="http://prints.iiap.res.in/handle/2248/682">http://prints.iiap.res.in/handle/2248/682</a> |
| Link text |
Click Here to Access eThesis |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Thesis & Dissertations |
| Source of classification or shelving scheme |
Universal Decimal Classification |
