a st ro - p h / 98 02 15 6 v 1 1 2 Fe b 19 98 Image Deconvolution of the Radio Ring PKS 1830

نویسندگان

  • C. Lidman
  • P. Magain
  • M. A. Pahre
  • S. G. Djorgovski Palomar
چکیده

New high quality Keck and ESO images of PKS 1830–211 are presented. Applying a powerful new deconvolution algorithm to this optical and infrared data, both images of the flat spectrum core of the radio source have been identified. An extended source is also detected in the optical images, consistent with the expected location of the lensing galaxy. The source counterparts are very red at I − K ∼ 7, suggesting strong Galactic absorption with additional absorption by the lensing galaxy at z = 0.885, and consistent with the detection of high redshift molecules in the lens. Subject headings: cosmology: observations — Gravitational lensing — infrared: galaxies — methods: data analysis — quasars: individual: PKS 1830–211 — technique: image processing

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : a st ro - p h / 98 02 15 6 v 2 1 A pr 1 99 8 Image Deconvolution of the Radio Ring PKS 1830

New high quality Keck and ESO images of PKS 1830–211 are presented. Applying a powerful new deconvolution algorithm to these optical and infrared data, both images of the flat spectrum core of the radio source have been identified. An extended source is also detected in the optical images, consistent with the expected location of the lensing galaxy. The source counterparts are very red at I −K ...

متن کامل

ar X iv : a st ro - p h / 98 02 15 6 v 2 1 A pr 1 99 8 Image Deconvolution of the Radio Ring PKS

New high quality Keck and ESO images of PKS 1830–211 are presented. Applying a powerful new deconvolution algorithm to these optical and infrared data, both images of the flat spectrum core of the radio source have been identified. An extended source is also detected in the optical images, consistent with the expected location of the lensing galaxy. The source counterparts are very red at I −K ...

متن کامل

ar X iv : a st ro - p h / 98 02 10 8 v 1 1 0 Fe b 19 98 Radio Emission towards Lensed Arcs in Galaxy Clusters

We present results from a search to detect radio emission at 1.4 GHz from gravitationally lensed arcs towards galaxy clusters. Using the FIRST survey observations of galaxy cluster fields, we have clearly detected 1.4 GHz emission at the location of bright arc towards the galaxy cluster Abell 370. The possibility that this emission is associated with a projected galaxy superimposed on the arc c...

متن کامل

ar X iv : a st ro - p h / 98 01 12 8 v 2 1 8 Fe b 19 98 Radio Observations of High Redshift Radio Galaxies

We review some aspects of radio continuum polarimetric imaging of high redshift radio galaxies. The correlation between extreme values of Faraday rotation observed toward radio emitting structures in nearby radio galaxies, and X-ray emitting cluster atmospheres, is presented as a method for targeting objects at high redshift for deep X-ray searches. We present an X-ray detection of the extreme ...

متن کامل

ar X iv : a st ro - p h / 98 02 12 1 v 2 1 1 Fe b 19 98 Distance to M 31 With the HST and Hipparcos Red Clump Stars

Following an approach by Paczy´nski & Stanek we compare red clump stars with parallaxes known to better than 10% in the Hipparcos catalog with the red clump stars observed in three fields in M31 using the HST. There are ∼ 600 and ∼ 6, 300 such stars in the two data sets, respectively. The local red clump luminosity function is well represented by a Gaussian with the peak at M I 0 ,m = −0.23, an...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998