Age gradients throughout the Galaxy with long-period variables

J Grady; V Belokurov; N W Evans

doi:10.1093/mnras/sty3284

Age gradients throughout the Galaxy with long-period variables

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/sty3284 ◽

2018 ◽

Vol 483 (3) ◽

pp. 3022-3035 ◽

Cited By ~ 7

Author(s):

J Grady ◽

V Belokurov ◽

N W Evans

Keyword(s):

Long Period ◽

Long Period Variables ◽

The Galaxy

Download Full-text

Long Period Variables in the Magellanic Clouds and the Galaxy

International Astronomical Union Colloquium ◽

10.1017/s0252921100117312 ◽

1993 ◽

Vol 139 ◽

pp. 192-200 ◽

Cited By ~ 1

Author(s):

S.M.G. Hughes

Keyword(s):

Mass Loss ◽

Galactic Disk ◽

Magellanic Clouds ◽

Pulsation Mode ◽

Long Period ◽

Long Period Variables ◽

The Galaxy ◽

Loss Rates

AbstractNew results (∼last two years) on mainly observational properties of Long Period Variables (LPVs) in the Magellanic Clouds and the Galaxy are reviewed. These properties include the effects of metallicity variations on their mass loss rates, the use of AGB LPVs to map the stellar distributions of the Galactic disk and bulge, and using detailed observations of nearby Miras to investigate their structure and to obtain new parallax distances, with implications for the pulsation mode of Miras.

Download Full-text

SiO Maser Surveys of Nearby Miras and their Kinematics in the Galaxy

Proceedings of the International Astronomical Union ◽

10.1017/s1743921312007119 ◽

2012 ◽

Vol 8 (S287) ◽

pp. 265-274

Author(s):

Shuji Deguchi

Keyword(s):

Variable Stars ◽

Solar Neighborhood ◽

Symbiotic Stars ◽

Spatial Motion ◽

Long Period ◽

Long Period Variables ◽

The Galaxy ◽

Recent Developments ◽

Γ Ray ◽

Galactic Spiral

AbstractI review recent developments of SiO maser observations of miras, and discuss their kinematics in the Galaxy. They are deeply related to problems in other fields, such as the noncircular motion of Galactic spiral arms, streaming motions of stars in the solar neighborhood, and the interface between the interstellar and circumstellar medium revealed by Far-IR imaging of some miras, as well as the bar structure of the Galaxy. Recent automated surveys of variable stars in optical bands have increased the number of red variables enormously. Most of these stars were not observed in the radio before because of their blue colors. We have obtained radial velocities of these long-period variables with SiO masers. The longitude-velocity diagrams have revealed interesting deviations of stellar motions from the circular motion of the Galaxy, some of which show spatial motion similar to that of the Hercules group of stars. Important developments of SiO maser observations have been made for symbiotic stars, one of which showed a nova eruption with concurrent γ ray emission in 2010 (V407 Cyg). SiO masers have been monitored for this star after the nova eruption. I summarize the SiO maser observations of individual stars also.

Download Full-text