6.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Academia SinicaTW1.4k papers
- National Astronomical Observatory of JapanJP910 papers
- The University of TokyoJP744 papers
- Center for Astrophysics Harvard & SmithsonianUS671 papers
- Centre National de la Recherche ScientifiqueFR668 papers
- European Southern ObservatoryCL490 papers
- California Institute of TechnologyUS470 papers
- The Graduate University for Advanced Studies, SOKENDAIJP427 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP425 papers
- Jet Propulsion LaboratoryUS360 papers
- Max Planck Institute for AstronomyDE342 papers
- Leiden UniversityNL340 papers
38 papers · 2 filters
The Chandra Planetary Nebulae Survey (ChanPlaNS): III. X-ray Emission from the Central Stars of Planetary Nebulae
R. Montez, J. H. Kastner, B. Balick +25
We present X-ray spectral analysis of 20 point-like X-ray sources detected in Chandra Planetary Nebula Survey (ChanPlaNS) observations of 59 planetary nebulae (PNe) in the solar ne…
Active-Region Tilt Angles: Magnetic Versus White-Light Determinations of Joy's Law
Y. -M. Wang, R. C. Colaninno, T. Baranyi +1
The axes of solar active regions are inclined relative to the east--west direction, with the tilt angle tending to increase with latitude ("Joy's law"). Observational determination…
Observations of Infalling and Rotational Motions on a 1,000-AU Scale around 17 Class 0 and 0/I Protostars: Hints of Disk Growth and Magnetic Braking?
Hsi-Wei Yen, Patrick M. Koch, Shigehisa Takakuwa +3
We perform imaging and analyses of SMA 1.3 mm continuum, C18O (2-1) and 12CO (2-1) line data of 17 Class 0 and 0/I protostars to study their gas kinematics on a 1,000-AU scale. Con…
HST Images Reveal Dramatic Changes in the Core of IRC+10216
Hyosun Kim, Ho-Gyu Lee, Nicolas Mauron +1
IRC+10216 is the nearest carbon star with a very high mass-loss rate. The existence of a binary companion has been hinted by indirect observational evidence, such as the bipolar mo…
The Identification of Extreme Asymptotic Giant Branch Stars and Red Supergiants in M33 by 24 μm Variability
Edward J. Montiel, Sundar Srinivasan, Geoffrey C. Clayton +2
We present the first detection of 24 μm variability in 24 sources in the Local Group galaxy M33. These results are based on 4 epochs of MIPS observations, which are irregularly spa…
The born-again planetary nebula A78: an X-ray twin of A30
J. A. Toalá, M. A. Guerrero, H. Todt +8
We present the XMM-Newton discovery of X-ray emission from the planetary nebula (PN) A78, the second born-again PN detected in X-rays apart from A30. These two PNe share similar sp…
The Structure of Pre-transitional Protoplanetary Disks. II. Azimuthal Asymmetries, Different Radial Distributions of Large and Small Dust Grains in PDS~70
J. Hashimoto, T. Tsukagoshi, J. M. Brown +54
The formation scenario of a gapped disk, i.e., transitional disk, and its asymmetry is still under debate. Proposed scenarios such as disk-planet interaction, photoevaporation, gra…
Kinematics of the Outflow From The Young Star DG Tau B: Rotation in the vicinities of an optical jet
Luis A. Zapata, Susana Lizano, Luis F. Rodriguez +4
We present CO(2-1) line and 1300 m continuum observations made with the Submillimeter Array (SMA) of the young star DG Tau B. We find, in the continuum observations, emis…
Radial velocity measurements of the pulsating zirconium star: LS IV -14 116
C. Simon Jeffery, Amir Ahmad, Naslim Neelamkodan +1
The helium-rich hot subdwarf LS IV -14 116 shows remarkably high surface abundances of zirconium, yttrium, strontium, and germanium, indicative of strong chemical stratification in…
A Spitzer Space Telescope survey of extreme Asymptotic Giant Branch stars in M32
O. C. Jones, I. McDonald, R. M. Rich +4
We investigate the population of cool, evolved stars in the Local Group dwarf elliptical galaxy M32, using Infrared Array Camera observations from the Spitzer Space Telescope. We c…
Transition from the Infalling Envelope to the Keplerian Disk around L1551 IRS 5
Ti-Lin Chou, Shigehisa Takakuwa, Hsi-Wei Yen +2
We present combined SubMillimeter Array (SMA) + Atacama Submillimeter Telescope Experiment (ASTE) images of the Class I protobinary L1551 IRS 5 in the CS ( = 7--6) line, the sub…
On the diffuse X-ray emission from the Wolf-Rayet Bubble NGC 2359
J. A. Toalá, M. A. Guerrero, Y. -H. Chu +1
A recent XMM-Newton observation (Zhekov 2014) has revealed diffuse X-ray emission inside the nebula NGC 2359 around the Wolf-Rayet star WR 7. Taking advantage of an improved point-…
Surface Geometry of Protoplanetary Disks Inferred From Near-Infrared Imaging Polarimetry
Michihiro Takami, Yasuhiro Hasegawa, Takayuki Muto +58
We present a new method of analysis for determining the surface geometry of five protoplanetary disks observed with near-infrared imaging polarimetry using Subaru-HiCIAO. Using as…
Angular Momentum Exchange by Gravitational Torques and Infall in the Circumbinary Disk of the Protostellar System L1551 NE
Shigehisa Takakuwa, Masao Saito, Kazuya Saigo +4
We report the ALMA observation of the Class I binary protostellar system L1551 NE in the 0.9-mm continuum, C18O (3-2), and 13CO (3-2) lines at a ~1.6 times higher resolution and a…
A VLBI Resolution of the Pleiades Distance Controversy
Carl Melis, Mark J. Reid, Amy J. Mioduszewski +2
Because of its proximity and its youth, the Pleiades open cluster of stars has been extensively studied and serves as a cornerstone for our understanding of the physical properties…
Characterization of Molecular Outflows in The Substellar Domain
Ngoc Phan-Bao, Chin-Fei Lee, Paul T. P. Ho +2
We report here our latest search for molecular outflows from young brown dwarfs and very low-mass stars in nearby star-forming regions. We have observed three sources in Taurus wit…
Modelling the magnetic activity & filtering radial velocity curves of young Suns: the weak-line T Tauri star LkCa 4
J. -F. Donati, E. Hebrard, G. Hussain +18
We report results of a spectropolarimetric and photometric monitoring of the weak-line T Tauri star LkCa4 within the MaTYSSE programme, involving ESPaDOnS at the Canada-France-Hawa…
On the Role of Pseudodisk Warping and Reconnection in Protostellar Disk Formation in Turbulent Magnetized Cores
Zhi-Yun Li, Ruben Krasnopolsky, Hsien Shang +1
The formation of rotationally supported protostellar disks is suppressed in ideal MHD in non-turbulent cores with aligned magnetic field and rotation axis. A promising way to resol…
Spitzer SAGE-Spec: Near Infrared Spectroscopy, Dust Shells, and Cool Envelopes in Extreme Large Magellanic Cloud AGB Stars
R. D. Blum, S. Srinivasan, F. Kemper +2
K-band spectra are presented for a sample of 39 Spitzer IRS SAGE-Spec sources in the Large Magellanic Cloud. The spectra exhibit characteristics in very good agreement with their p…
Early-stage star forming cloud cores in GLIMPSE Extended Green Objects (EGOs) as traced by organic species
Jixing Ge, Jinhua He, Xi Chen +1
In order to investigate the physical and chemical properties of massive star forming cores in early stages, we analyse the excitation and abundance of four organic species, CH3OH,…
CO J = 2 - 1 Emission from Evolved Stars in the Galactic Bulge
Benjamin A. Sargent, N. A. Patel, M. Meixner +3
We observe a sample of 8 evolved stars in the Galactic Bulge in the CO J = 2 - 1 line using the Submillimeter Array (SMA) with angular resolution of 1 - 4 arcseconds. These stars h…
Search for surviving companions in type Ia supernova remnants
Kuo-Chuan Pan, Paul M. Ricker, Ronald E. Taam
The nature of the progenitor systems of type~Ia supernovae is still unclear. One way to distinguish between the single-degenerate scenario and double-degenerate scenario for their…
ALMA Observations of Infalling Flows toward the Keplerian Disk around the Class I Protostar L1489 IRS
Hsi-Wei Yen, Shigehisa Takakuwa, Nagayoshi Ohashi +8
We have conducted ALMA observations in the 1.3 mm continuum and 12CO (2-1), C18O (2-1) and SO (5_6-4_5) lines toward L1489 IRS, a Class I protostar surrounded by a Keplerian disk a…
Carbon-rich dust past the asymptotic giant branch: aliphatics, aromatics, and fullerenes in the Magellanic Clouds
G. C. Sloan, E. Lagadec, A. A. Zijlstra +10
Infrared spectra of carbon-rich objects which have evolved off the asymptotic giant branch reveal a range of dust properties, including fullerenes, polycyclic aromatic hydrocarbons…