Spectroscopic pre-main-sequence binaries. II. Haro 1-14c and Parenago 2494
(2002) In The Astronomical Journal 124(5). p.2813-2820- Abstract
- In the course of a long-term radial velocity survey of about 100 southern pre-main-sequence (PMS) stars, we have discovered two spectroscopic PMS binaries. One is the weak-lined T Tauri star Haro 1-14c in the Ophiuchus clouds, which has a spectral type of K3 and is a member of the visual Haro 1-14 binary with a separation of 12."9. Haro 1-14c is a single-lined spectroscopic binary with a very long period of 591 days. The other is Parenago 2494, a weak-lined T Tauri star with a spectral type of K0 located in the Orion cluster. It is a double-lined spectroscopic binary with a period of 19.5 days. Our photometric monitoring shows that P2494 is a low-amplitude variable with a period of 5.77 days. We have determined accurate orbital elements... (More)
- In the course of a long-term radial velocity survey of about 100 southern pre-main-sequence (PMS) stars, we have discovered two spectroscopic PMS binaries. One is the weak-lined T Tauri star Haro 1-14c in the Ophiuchus clouds, which has a spectral type of K3 and is a member of the visual Haro 1-14 binary with a separation of 12."9. Haro 1-14c is a single-lined spectroscopic binary with a very long period of 591 days. The other is Parenago 2494, a weak-lined T Tauri star with a spectral type of K0 located in the Orion cluster. It is a double-lined spectroscopic binary with a period of 19.5 days. Our photometric monitoring shows that P2494 is a low-amplitude variable with a period of 5.77 days. We have determined accurate orbital elements for both binaries. We further discuss five low-amplitude velocity variable stars, which are possibly additional spectroscopic PMS binaries. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/324858
- author
- Reipurth, B ; Lindgren, Harri LU ; Mayor, M ; Mermilliod, JC and Cramer, N
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- : other, binaries : spectroscopic, stars : pre-main-sequence, stars : variables
- in
- The Astronomical Journal
- volume
- 124
- issue
- 5
- pages
- 2813 - 2820
- publisher
- IOP Publishing
- external identifiers
-
- wos:000178768200032
- scopus:0141528815
- ISSN
- 1538-3881
- language
- English
- LU publication?
- yes
- id
- ca443f57-5c1c-49c6-80ac-3570edcaa3b6 (old id 324858)
- alternative location
- http://www.iop.org/EJ/article/1538-3881/124/5/2813/202160.web.pdf?request-id=0b0887c0-9409-45f3-886f-53ca0f4d338c
- date added to LUP
- 2016-04-01 12:17:28
- date last changed
- 2024-01-08 15:14:02
@article{ca443f57-5c1c-49c6-80ac-3570edcaa3b6, abstract = {{In the course of a long-term radial velocity survey of about 100 southern pre-main-sequence (PMS) stars, we have discovered two spectroscopic PMS binaries. One is the weak-lined T Tauri star Haro 1-14c in the Ophiuchus clouds, which has a spectral type of K3 and is a member of the visual Haro 1-14 binary with a separation of 12."9. Haro 1-14c is a single-lined spectroscopic binary with a very long period of 591 days. The other is Parenago 2494, a weak-lined T Tauri star with a spectral type of K0 located in the Orion cluster. It is a double-lined spectroscopic binary with a period of 19.5 days. Our photometric monitoring shows that P2494 is a low-amplitude variable with a period of 5.77 days. We have determined accurate orbital elements for both binaries. We further discuss five low-amplitude velocity variable stars, which are possibly additional spectroscopic PMS binaries.}}, author = {{Reipurth, B and Lindgren, Harri and Mayor, M and Mermilliod, JC and Cramer, N}}, issn = {{1538-3881}}, keywords = {{: other; binaries : spectroscopic; stars : pre-main-sequence; stars : variables}}, language = {{eng}}, number = {{5}}, pages = {{2813--2820}}, publisher = {{IOP Publishing}}, series = {{The Astronomical Journal}}, title = {{Spectroscopic pre-main-sequence binaries. II. Haro 1-14c and Parenago 2494}}, url = {{http://www.iop.org/EJ/article/1538-3881/124/5/2813/202160.web.pdf?request-id=0b0887c0-9409-45f3-886f-53ca0f4d338c}}, volume = {{124}}, year = {{2002}}, }