A SEARCH FOR CORONAL ACTIVITY AMONG TWO METAL-POOR SUBDWARFS AND ONE SUBGIANT
A search has been made using the XMM-Newton satellite for coronal soft X-ray emission from HD 19445, HD 25329, and HD 140283, three Population II stars in the Galactic halo having metallicities of [Fe/H] ∼ -2. The program stars, consisting of two subdwarfs and one metal-poor subgiant, were pre-selec...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Institute of Physics Publishing (IOP)
2016
|
| Online Access: | http://hdl.handle.net/1721.1/104883 |