Hae
Aineistot 1-5 / 5
Strongly Bipolar Inner Ejecta of the Normal Type IIP Supernova ASASSN-16at
We report distinctly double-peaked H alpha and H beta emission lines in the late-time, nebular-phase spectra (greater than or similar to 200 days) of the otherwise normal at early phases (less than or similar to 100 days) ...
High-precision broad-band linear polarimetry of early-type binaries. II. Variable, phase-locked polarization in triple Algol-type system λ Tauri
<p>Aim. To study the binary geometry of the classic Algol-type triple
system λ Tau, we have searched for polarization variations over
the orbital cycle of the inner semi-detached binary, arising from light
scattering ...
Very-high-energy gamma-rays from the Universe's middle age: detection of the z=0.940 blazar PKS 1441+25 with MAGIC
<p>
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250 GeV with a significance of 25.5 {sigma} using the MAGIC telescopes. Together with the gravitationally lensed blazar ...
A Catastrophic Failure to Build a Massive Galaxy around a Supermassive Black Hole at z=3.84
We present observations of the stellar and molecular gas mass of SDSS J163909+282447.1, a luminous quasar at z = 3.84 with an extreme mass for a supermassive black hole (SMBH; M-BH 2.5 x 10(10) M-circle dot). The local ...
The quasar M-BH-M-host relation through cosmic time - I. Data set and black hole masses
We study the M-BH-M-host relation as a function of cosmic time in a sample of 96 quasars from z = 3 to the present epoch. In this paper, we describe the sample, the data sources and the new spectroscopic observations. We ...