| Title | The Long-Period Variable Stars of M33 |
| Authors | Mould, Jeremy; Graham, James R.; Matthews, Keith; Neugebauer, Gerry; Elias, Jonathan |
| Bibcode | 1990ApJ...349..503M Search ADS ↗ |
| Abstract | Infrared photometry of long-period variables (LPVs) in M33 shows that the majority of those identified up to now are supergiants. The period- luminosity relation for these stars yields a distance to M33 of 760 kpc with a 10% uncertainty. This uncertainty primarily reflects the uncertain distance of the Large Magellanic Cloud, although the broader P-L relation of M33 is a contributing factor. Cepheid period-luminosity relations yield a distance at the low end of this range; RR Lyrae stars tend toward the high end. The remaining LPVs are asympototic giant branch stars. There is one confirmed carbon star among them. |
| Objects | 1 Objects Search NED ↙ |
