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Outflows, cores, and magnetic field orientations in W43-MM1 as seen by ALMA
(EDP Sciences, 2020)
Aims. It has been proposed that the magnetic field, which is pervasive in the interstellar medium, plays an important role in the process of massive star formation. To better understand the impact of the magnetic field at ...
Photometric analysis of the eclipsing polar MN Hya
(National Astronomical Observatories, 2018-07)
As an eclipsing polar with a 3.39 h orbital period, MN Hya was going through a state change when we observed it during 2009-2016. Ten new mid-eclipse times, along with others obtained from literature, allow us to give a ...
1.3 mm Polarized emission in the circumstellar disk of a massive protostar
(IOP Publishing, 2016-12)
We present the first resolved observations of the 1.3 mm polarized emission from the disk-like structure surrounding the high-mass protostar Cepheus A HW2. These CARMA data partially resolve the dust polarization, suggesting ...
Outflowing disk formation in B[e] supergiants due to rotation and bi-stability in radiation driven winds
(EDP Sciences, 2005-07)
The effects of rapid rotation and bi-stability upon the density contrast between the equatorial and polar directions of a B[e] supergiant are re-investigated. Based on a new slow solution for different high rotational ...
ALMA Reveals Transition of Polarization Pattern with Wavelength in HL Tau's Disk
(IOP Publishing, 2017-12)
The mechanism for producing polarized emission from protostellar disks at (sub)millimeter wavelengths is currently uncertain. Classically, polarization is expected from non-spherical grains aligned with the magnetic field. ...
HD149277: A rare short-period SB2 system with a subsynchronously rotating magnetic He-rich primary
(Oxford University Press, 2018-11)
HD149277 is a rare SB2 system with a slowly rotating magnetic He-rich primary with Prot = 25.4 d. The CFHT/ESPaDOnS archive spectra revealed Porb = 11.5192 ± 0.0005 d indicating strong subsynchronous rotation of the primary ...
TOWARD UNDERSTANDING THE B[e] PHENOMENON. IV. MODELING OF IRAS 00470+6429
(IOP PUBLISHING LTD, 2010)
FS CMa type stars are a recently described group of objects with the B[e] phenomenon which exhibits strong emission-line spectra and strong IR excesses. In this paper, we report the first attempt for a detailed modeling ...
H alpha spectropolarimetry of the B[e] supergiant GG Carinae
(EDP SCIENCES S A, 2009)
Aims. We study the geometry of the circumstellar environment of the B[e] supergiant star GG Car. Methods. We present observations acquired using the IAGPOL imaging polarimeter in combination with the Eucalyptus-IFU ...
Modeling the polarization of high-energy radiation from accreting black holes: A case study of XTE J1118+480
(Edp Sciences, 2016-03)
Context. The high-energy emission (400 keV-2 MeV) of Cygnus X-1, which is the best-studied Galactic black hole, was recently found to be strongly polarized. The origin of this radiation is still unknown. Aims. We suggest ...
MASTER Optical Polarization Variability Detection in the Microquasar V404 Cyg/GS 2023+33
(IOP Publishing, 2016-12-09)
On 2015 June 15, the Swift space observatory discovered that the Galactic black hole candidate V404 Cyg was undergoing another active X-ray phase, after 25 years of inactivity. The 12 telescopes of the MASTER Global Robotic ...