A survey for red varibles INT he LMC - II

Details A survey for red varibles INT he LMC - II A survey for red varibles INT he LMC - II

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.232...53r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 232, May 1, 1988, p. 53-79.

Astronomy and Astrophysics

Astronomy

54

Infrared Photometry, Magellanic Clouds, Red Giant Stars, Variable Stars, Asymptotic Giant Branch Stars, Color-Magnitude Diagram, Late Stars, Light Curve, Mira Variables, Near Infrared Radiation, Stellar Luminosity

Scientific paper

Infrared photometry of a sample of 126 variables drawn from a 16 sq deg area of the northern LMC is presented. Most of these stars were previously unknown and the majority prove the be long period red-giant variables. Most of the latter stars fall within two groups in the /K(0), log(P)/ diagram, the lower luminosity ones being Miras which obey a definite period-luminosity relation. Using the latter stars as distance estimators is discussed. The /M(bol), P/ diagram is compared with the theoretical tracks calculated by Wood, Bessell & Fox (1983), and it is found that the distribution of stars is probably consistent with a lull in star formation in the LMC from about 10 to the 9th - 2 x 10 to the 8th yr ago, although this conclusion depends strongly on the luminosity at which stars of different initial mass enter the thermally pulsing AGB.

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