| Autor: |
Heintz, K. E., Fynbo, J. P. U., Krogager, J.-K., Vestergaard, M., Møller, P., Arabsalmani, M., Geier, S., Noterdaeme, P., Ledoux, C., Saturni, F. G., Venemans, B. |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Druh dokumentu: |
Článek |
| ISSN: |
1538-3881 |
| DOI: |
10.3847/0004-6256/152/1/13 |
| Popis: |
We present the serendipitous discovery of a projected pair of quasi-stellar objects (QSOs) with an angular separation of Delta theta = 4.50 arcsec. The redshifts of the two QSOs are widely different: one, our program target, is a QSO with a spectrum consistent with being a narrow line Seyfert 1 active galactic nucleus at z = 2.05. For this target we detect Ly alpha, C IV, and C III]. The other QSO, which by chance was included on the spectroscopic slit, is a Type 1 QSO at a redshift of z = 1.68, for which we detect C IV, CIII], and Mg II. We compare this system to previously detected projected QSO pairs and find that only about a dozen previously known pairs have smaller angular separation. |
| Databáze: |
Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
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