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The Distribution of M Supergiants with Large Infrared Excess and WR Stars in the Galaxy

Published online by Cambridge University Press:  03 August 2017

M. Raharto
M. Raharto*
Affiliation:
Bosscha Observatory and Department of Astronomy Bandung Institute of Technology Indonesia

Extract

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From the m12 – m25vs. spectral type diagram (see for example: Habing, 1987, Figure 5), it can be seen that there are no early M giant stars with m12 – m25 > 0.7. On the other hand all early M stars with m12 – m25 > 0.7 are M supergiants. These early type M supergiants have typically infrared excesses at 12 μm in the range of 20 to 170 times higher than their photosperic fluxes.

Type
Session VIII. Inventory and Distribution
Information
Symposium - International Astronomical Union , Volume 143: Wolf–Rayet Stars and Interrelations with other Massive Stars in Galaxies , 1991 , pp. 641 - 642
Copyright
Copyright © Kluwer 1991 

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