Morphology and Spectroscopy of Markarian 231
نویسندگان
چکیده
منابع مشابه
OH megamasers , starburst and AGN activity in Markarian 231
We present MERLIN observations of OH maser and radio continuum emission within a few hundred pc of the core of the Ultra Luminous IR Galaxy Markarian 231. This is the only known OH megamaser galaxy classed as a Seyfert 1. Maser emission is identified with the 1665and 1667-MHz transitions over a velocity extent of 720 km s. Both lines show a similar position-velocity structure including a gradie...
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Observations of Markarian 231 at 1.1 µm taken with NICMOS on the Hubble Space Telescope are described. The brightness of the object in the near infrared and the inherent short-term stability of the NICMOS optical and instrumental system enables application of special observational and analysis techniques that effectively increase high spatial resolution. By these means, we set an upper limit on...
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15 صفحه اولRadio Continuum Evidence for Outflow and Absorption in the Seyfert 1 Galaxy Markarian 231
The Very Long Baseline Array (VLBA) and the Very Large Array (VLA) have been used to image the continuum radio emission from Mrk 231, a Seyfert 1 galaxy and the brightest infrared galaxy in the local universe. The smallest VLBA scales reveal a double, or possibly triple, source less than 2 pc in extent. The components of this central source have minimum brightness temperatures of 10 9 –10 10 K,...
متن کاملHigh Spatial Resolution Hubble Space Telescope NICMOS Observations of Markarian 231
Observations of Markarian 231 at 1.1 mm taken with NICMOS on the Hubble Space Telescope are described. The brightness of the object in the near-infrared, and the inherent short-term stability of the NICMOS optical and instrumental system, enables the application of special observational and analysis techniques that effectively increase high spatial resolution. By these means, we set an upper li...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1987
ISSN: 0074-1809
DOI: 10.1017/s007418090015541x