output
19962026
most citedPlanck 2013 results. XVI. Cosmological parameters

6.6k citations

Showing 2018 · astro-ph.SRShow all

30 papers · 2 filters

astro-ph.SR2018★ 29 cited

The wavelength dependence of interstellar polarization in the Local Hot Bubble

Daniel V. Cotton, Jonathan P. Marshall, Priscilla C. Frisch +6

The properties of dust in the interstellar medium (ISM) nearest the Sun are poorly understood because the low column densities of dust toward nearby stars induce little photometric…

astro-ph.SR2018★ 31 cited

Gas Flows Within Cavities of Circumbinary Discs in Eccentric Binary Protostellar Systems

Philipp Mösta, Ronald E. Taam, Paul C. Duffell

The structure and evolution of gas flows within the cavity of a circumbinary disk (CBD) surrounding the stellar components in eccentric binaries are examined via two-dimensional hy…

astro-ph.SR2018★ 24 cited

The JCMT Transient Survey: An Extraordinary Submillimetre Flare in the T Tauri Binary System JW 566

Steve Mairs, Bhavana Lalchand, Geoffrey C. Bower +7

The binary T Tauri system JW 566 in the Orion Molecular Cloud underwent an energetic, short-lived flare observed at submillimetre wavelengths by the SCUBA-2 instrument on 26 Novemb…

astro-ph.SR2018★ 10 cited

Extreme fragmentation and complex kinematics at the center of the L1287 cloud

Carmen Juárez, Hauyu-Baobab Liu, Josep M. Girart +5

The filamentary infrared dark cloud L1287 is actively forming a dense cluster of low-mass YSOs at its inner 0.1 pc region. To help understand the origin of this low-mass YSO…

astro-ph.SR2018★ 3 cited

Light curve variation caused by accretion column switching stellar hemispheres

Miljenko Čemeljić

I use two-dimensional axisymmetric numerical simulations of star-disk magnetospheric interaction to construct a three-dimensional model of hot spots on the star created by infallin…

astro-ph.SR2018★ 11 cited

Compressed magnetic field in the magnetically-regulated global collapsing clump of G9.62+0.19

Tie Liu, Kee-Tae Kim, Sheng-Yuan Liu +22

How stellar feedback from high-mass stars (e.g., H{\sc ii} regions) influences the surrounding interstellar medium and regulates new star formation is still unclear. To address thi…

astro-ph.SR2018★ 61 cited

The magnetic propeller accretion regime of LkCa 15

J-F Donati, J Bouvier, SH Alencar +12

We present a spectropolarimetric study of the classical T Tauri star (cTTS) LkCa 15 investigating the large-scale magnetic topology of the central star and the way the field connec…

astro-ph.SR2018★ 46 cited

Inner disk structure of the classical T Tauri star LkCa 15

S. H. P. Alencar, J. Bouvier, J. -F. Donati +15

Magnetospheric accretion has been thoroughly studied in young stellar systems with full non-evolved accretion disks, but it is poorly documented for transition disk objects with la…

astro-ph.SR2018★ 39 cited

Multi-epoch Direct Imaging and Time-Variable Scattered Light Morphology of the HD 163296 Protoplanetary Disk

Evan A. Rich, John P. Wisniewski, Thayne Currie +58

We present H-band polarized scattered light imagery and JHK high-contrast spectroscopy of the protoplanetary disk around HD 163296 observed with the HiCIAO and SCExAO/CHARIS instru…

astro-ph.SR2018★ 19 cited

Physical and Chemical Conditions of the Protostellar Envelope and the Protoplanetary Disk in HL Tau

Chun-Ju Wu, Naomi Hirano, Shigehisa Takakuwa +2

We report our SMA observations of the Class \RN{1}-\RN{2} protostar HL Tau in the CO (2--1), CO (2--1), SO(5--4), and the 1.3 mm dust-continuum emission and o…

astro-ph.SR2018★ 6 cited

The physical and chemical properties of the ophiuchi A dense core

Yu-Ching Chen, Naomi Hirano

The physical and chemical properties of the Ophiuchi A core were studied using 1.3 mm continuum and molecular lines such as CO, CO, CHOH and HCO observed…

astro-ph.SR2018★ 12 cited

Physical properties of the fullerene C60-containing planetary nebula SaSt 2-3

Masaaki Otsuka

We perform a detailed analysis of the fullerene C60-containing planetary nebula (PN) SaSt2-3 to investigate the physical properties of the central star (B0-1II) and nebula based on…

astro-ph.SR2018★ 67 cited

The formation of rings and gaps in wind-launching non-ideal MHD disks: three-dimensional simulations

Scott S. Suriano, Zhi-Yun Li, Ruben Krasnopolsky +2

Previous axisymmetric investigations in two dimensions (2D) have shown that rings and gaps develop naturally in non-ideal magnetohydrodynamic (MHD) disk-wind systems, especially in…

astro-ph.SR2018★ 22 cited

Extremely Dense Cores associated with Chandra Sources in Ophiuchus A: Forming Brown Dwarfs Unveiled?

Ryohei Kawabe, Chihomi Hara, Fumitaka Nakamura +15

On the basis of various data such as ALMA, JVLA, Chandra, {\it Herschel}, and {\it Spitzer}, we confirmed that two protostellar candidates in Oph-A are bona fide protostars or prot…

astro-ph.SR2018★ 6 cited

Far-infrared emission of massive stars

R. Siebenmorgen, P. Scicluna, J. Krelowski

We present results of the analysis of a sample of 22 stars of spectral types from O7 to B5 and luminosity classes I-V for which Spitzer/IRS spectra are available. The IRS spectra o…

astro-ph.SR2018★ 55 cited

Near-Infrared High-Resolution Imaging Polarimetry of FU Ori-Type Objects: Towards A Unified Scheme for Low-Mass Protostellar Evolution

Michihiro Takami, Guangwei Fu, Hauyu Baobab Liu +14

We present near-IR imaging polarimetry of five classical FU Ori-type objects (FU Ori, V1057 Cyg, V1515 Cyg, V1735 Cyg, Z CMa) with a 0\farcs1 resolution observed using HiCIAO…

astro-ph.SR2018★ 1 cited

Orbital characterization of GJ1108A system, and comparison of dynamical mass with model-derived mass for resolved binaries

T. Mizuki, M. Kuzuhara, K. Mede +55

We report an orbital characterization of GJ1108Aab that is a low-mass binary system in pre-main-sequence phase. Via the combination of astrometry using adaptive optics and radial v…

astro-ph.SR2018★ 65 cited

First detection of HS in a protoplanetary disk. The dense GG Tau A ring

N. T. Phuong, E. Chapillon, L. Majumdar +8

Studying molecular species in protoplanetary disks is very useful to characterize the properties of these objects, which are the site of planet formation. We attempt to constrain t…

astro-ph.SR2018★ 16 cited

Revised SED of the triple protostellar system VLA 1623-2417

Nadia M. Murillo, Daniel Harsono, Melissa McClure +2

VLA 16232417 is a triple protostellar system deeply embedded in Ophiuchus A. Sources A and B have a separation of 1.1", making their study difficult beyond the submillimeter reg…

astro-ph.SR2018★ 11 cited

The Distinct Evolutionary Nature of two Class 0 Protostars in Serpens Main SMM4

Yusuke Aso, Naomi Hirano, Yuri Aikawa +4

We have observed the submillimeter continuum condensation SMM4 in Serpens Main using the Atacama Large Millimeter/submillimeter Array (ALMA) during its Cycle 3 in 1.3 mm continuum,…

astro-ph.SR2018★ 29 cited

Water and interstellar complex organics associated with the HH 212 protostellar disc - On disc atmospheres, disc winds, and accretion shocks

C. Codella, E. Bianchi, B. Tabone +14

The HH 212 protostellar system, in Orion B, has been mapped thanks to ALMA-Band 7 Cycle 1 and Cycle 4 observations of dueterated water (HDO) and acetaldehyde (CHCHO) emission w…

astro-ph.SR2018★ 176 cited

The Eccentric Cavity, Triple Rings, Two-Armed Spirals, and Double Clumps of the MWC 758 Disk

Ruobing Dong, Sheng-yuan Liu, Josh Eisner +15

Spatially resolved structures in protoplanetary disks hint at unseen planets. Previous imaging observations of the transitional disk around MWC 758 revealed an inner cavity, a ring…

astro-ph.SR2018★ 8 cited

High-contrast Polarimetry Observation of T Tau Circumstellar Environment

Yi Yang, Satoshi Mayama, Saeko S. Hayashi +52

We conducted high-contrast polarimetry observations of T Tau in the H-band, using the HiCIAO instrument mounted on the Subaru Telescope, revealing structures as near as 0.$\arcsec$…

astro-ph.SR2018★ 9 cited

On the Nature of Long-Period Dwarf Novae with Rare and Low-Amplitude Outbursts

Mariko Kimura, Taichi Kato, Hiroyuki Maehara +35

There are several peculiar long-period dwarf-nova like objects, which show rare, low-amplitude outbursts with highly ionized emission lines. 1SWASP J162117441254, BD Pav, and V3…