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: | , , |
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| Other Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
Institute of Physics Publishing (IOP),
2016-10-20T17:50:21Z.
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| Subjects: | |
| Online Access: | Get fulltext |