中文
相关论文

相关论文: Magnetic field in a young circumbinary disk

200 篇论文

With two directly detected protoplanets, the PDS 70 system is a unique source in which to study the complex interplay between forming planets and their natal environment. The large dust cavity carved by the two giant planets can affect the…

地球与行星天体物理 · 物理学 2024-09-04 L. Rampinelli , S. Facchini , M. Leemker , J. Bae , M. Benisty , R. Teague , C. J. Law , K. I. Öberg , B. Portilla-Revelo , A. J. Cridland

We present the results of a systematic observational campaign designed to search for microvariability in the optical polarization of BL Lac objects. We have observed a sample formed by 8 X-ray-selected and 10 radio-selected sources, looking…

天体物理学 · 物理学 2009-11-11 I. Andruchow , G. E. Romero , S. A. Cellone

The magnetic structure in the Galactic disk, the Galactic center and the Galactic halo can be delineated more clearly than ever before. In the Galactic disk, the magnetic structure has been revealed by starlight polarization within 2 or 3…

星系天体物理 · 物理学 2009-11-13 J. L. Han

We have carried out continuum and line polarisation observations of two Proto-planetary nebulae (PPNe), CRL 618 and OH 231.8+4.2, using the Submillimeter Array (SMA) in its compact configuration. The frequency range of observations, 330-345…

太阳与恒星天体物理 · 物理学 2015-06-18 L. Sabin , Q. Zhang , A. A. Zijlstra , N. A. Patel , R. Vázquez , B. A. Zauderer , M. E. Contreras , P. F. Guillén

The complete three-dimensional structure of the magnetic field within molecular clouds has eluded determination despite its high value in determining controlling factors in the star formation process, as it cannot be directly probed…

星系天体物理 · 物理学 2019-03-13 Che-Yu Chen , Patrick K. King , Zhi-Yun Li , Laura M. Fissel , Renato R. Mazzei

We describe the first complete polarimetric dataset of the entire outburst of a low-mass black hole X-ray binary system and discuss the constraints for geometry and radiative mechanisms it imposes. During the decaying hard state, when the…

We present ALMA images of the sub-mm continuum polarisation and spectral index of the protoplanetary ringed disk HD163296. The polarisation fraction at 870{\mu}m is measured to be ~0.9% in the central core and generally increases with…

地球与行星天体物理 · 物理学 2018-10-10 W. R. F. Dent , C. Pinte , P. C. Cortes , F. Ménard , A. Hales , E. Fomalont , I. de Gregorio-Monsalvo

Polarized dust emission is a key tracer in the study of interstellar medium and of star formation. The observed polarization, however, is a product of magnetic field structure, dust grain properties and grain alignment efficiency, as well…

The polarized dust emission observed in Class 0 protostellar cores at high angular resolution with ALMA has raised several concerns about the grain alignment conditions in these regions. We aim to study the role of the radiation field on…

Magnetic fields are expected to play an important role in accretion processes for circumstellar disks. Measuring the magnetic field morphology is difficult, especially since polarimetric (sub)millimeter continuum observations may not trace…

太阳与恒星天体物理 · 物理学 2020-09-30 Ian W. Stephens , Manuel Fernandez-Lopez , Zhi-Yun Li , Leslie W. Looney , Richard Teague

Young stellar objects (YSOs) are surrounded by protoplanetary disks, which are the birthplace of young planets. Ring and gap structures are observed among evolved protoplanetary disks, often interpreted as a consequence of planet formation.…

Planck results have revealed that the electric dipole emission from polycyclic aromatic hydrocarbons (PAHs) is the most reliable explanation for anomalous microwave emission that interferes with cosmic microwave background (CMB) radiation…

星系天体物理 · 物理学 2015-06-15 Thiem Hoang , A. Lazarian , P. G. Martin

Polarization of interstellar dust emission is a powerful probe of dust properties and magnetic field structure. Yet studies of external galaxies are hampered by foreground dust contribution. The aim of this study is to separate the…

星系天体物理 · 物理学 2022-11-30 D. Alina , J. -Ph. Bernard , K. H. Yuen , A. Lazarian , A. Hughes , M. Iskakova , A. Akimkhan , A. Mukanova

Magnetic fields and turbulence may play a key role in the evolution of protoclusters, influencing the formation of dense cores and stars. Here, we examine the morphology of the magnetic fields in the G327.29 protocluster using both the…

The dynamical interactions between young binaries can perturb the material distribution of their circumstellar disks, and modify the planet formation process. In order to constrain the impact and nature of the binary interaction in the RW…

The bending of radio galaxies in galaxy clusters is expected to be caused by interactions with the local environment. The physical processes responsible for jet bending, and their influence on the polarization properties of radio galaxies,…

星系天体物理 · 物理学 2026-01-16 S. Vanderwoude , E. Osinga , B. M. Gaensler , J. L. West , R. J. van Weeren

Fast Radio Bursts (FRBs) are short-timescale transients of extragalactic origin. The number of detected FRBs has grown dramatically since their serendipitous discovery from archival data. Some FRBs have also been seen to repeat. The…

高能天体物理现象 · 物理学 2024-05-21 Pavan Uttarkar , Ryan M. Shannon , Marcus E. Lower , Pravir Kumar , Danny C. Price , A. T. Deller , K. Gourdji

Atacama Large Millimeter/Submillimeter Array (ALMA) has revolutionized the field of dust polarization in protoplanetary disks across multiple wavelengths. Previous observations and empirical modeling suggested multiple mechanisms of dust…

太阳与恒星天体物理 · 物理学 2024-07-30 Nguyen Tat Thang , Pham Ngoc Diep , Thiem Hoang , Le Ngoc Tram , Nguyen Bich Ngoc , Nguyen Thi Phuong , Bao Truong

Galactic dust emission is polarized at unexpectedly high levels, as revealed by Planck. The origin of the observed $\simeq 20\%$ polarization fractions can be identified by characterizing the properties of optical starlight polarization in…

星系天体物理 · 物理学 2019-04-17 G. V. Panopoulou , B. S. Hensley , R. Skalidis , D. Blinov , K. Tassis
‹ 上一页 1 8 9 10 下一页 ›