Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Letawe, Y."'
We analyse a sample of 69 QSOs which have been randomly selected in a complete sample of 104 QSOs (R<18, 0.142 < z < 0.198). 60 have been observed with the NTT/SUSI2 at La Silla, through two filters in the optical band (WB#655 and V#812), and the rem
Externí odkaz:
http://arxiv.org/abs/1001.0463
Publikováno v:
Mon.Not.Roy.Astron.Soc.396:78,2009
The QSO HE0450-2958 was brought to the front scene by the non-detection of its host galaxy and strong upper limits on the latter's luminosity. The QSO is also a powerful infrared emitter, in gravitational interaction with a strongly distorted UltraLu
Externí odkaz:
http://arxiv.org/abs/0903.1718
We investigate correlations between the direction of the optical linear polarization and the orientation of the host galaxy/extended emission for type1 and type2 radio-loud and radio-quiet quasars. We have used high resolution Hubble Space Telescope
Externí odkaz:
http://arxiv.org/abs/0809.4539
The host galaxies of six nearby QSOs are studied on the basis of high resolution HST optical images and spatially resolved VLT slit spectra. The gas ionization and velocity are mapped as a function of the distance to the central QSO. In the majority
Externí odkaz:
http://arxiv.org/abs/0802.1386
We investigate correlations between the optical linear polarization position angle and the orientation of the host galaxy/extended emission of Type 1 and Type 2 Radio-Loud (RL) and Radio-Quiet (RQ) quasars. We have used high resolution Hubble Space T
Externí odkaz:
http://arxiv.org/abs/0710.4072
For Seyfert galaxies, the AGN unification model provides a simple and well established explanation of the Type 1/Type 2 dichotomy through orientation based effects. The generalization of this unification model to the higher luminosity AGNs that are t
Externí odkaz:
http://arxiv.org/abs/0710.4048
A new method is presented for determining the Point Spread Function (PSF) of images that lack bright and isolated stars. It is based on the same principles as the MCS (Magain, Courbin, Sohy, 1998) image deconvolution algorithm. It uses the informatio
Externí odkaz:
http://arxiv.org/abs/astro-ph/0609600
Autor:
Borguet, B., Hutsemékers, D., Letawe, G., Letawe, Y., Magain, P., Borguet, B., Hutsemékers, D., Letawe, G., Letawe, Y., Magain, P.
Publikováno v:
Astronomy and Astrophysics; February 2008, Vol. 478 Issue: 2 p321-333, 13p
Autor:
Magain, P., Courbin, F., Gillon, M., Sohy, S., Letawe, G., Chantry, V., Letawe, Y., Magain, P., Courbin, F., Gillon, M., Sohy, S., Letawe, G., Chantry, V., Letawe, Y.
Publikováno v:
Astronomy and Astrophysics; January 2007, Vol. 461 Issue: 1 p373-379, 7p
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Jun2009, Vol. 396 Issue 1, p78-84, 7p, 7 Diagrams, 1 Graph