14.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.5k papers
- European Southern ObservatoryCL1.8k papers
- Heidelberg UniversityDE1.5k papers
- California Institute of TechnologyUS1.5k papers
- Leiden UniversityNL1.4k papers
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- Space Telescope Science InstituteUS1.2k papers
- Max Planck Institute for Extraterrestrial PhysicsDE1.1k papers
- University of ArizonaUS1.1k papers
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- University of CambridgeGB989 papers
- National Institute for AstrophysicsIT971 papers
378 papers · 1 filter
The kinematics of very low mass dwarfs: splinter session summary
Adam J. Burgasser, Jacqueline K. Faherty, Sarah Schmidt +10
Kinematic investigations are being increasingly deployed in studies of the lowest mass stars and brown dwarfs to investigate their origins, characterize their atmospheres, and exam…
GRAVITY: beam stabilization and light injection subsystems
O. Pfuhl, M. Haug, F. Eisenhauer +9
We present design results of the 2nd generation VLTI instrument GRAVITY beam stabilization and light injection subsystems. Designed to deliver micro-arcsecond astrometry, GRAVITY r…
Does the Sagittarius Stream constrain the Milky Way halo to be triaxial?
Rodrigo Ibata, Geraint F. Lewis, Nicolas F. Martin +2
Recent analyses of the stellar stream of the Sagittarius dwarf galaxy have claimed that the kinematics and three-dimensional location of the M-giant stars in this structure constra…
The anatomy of an extreme starburst within 1.3Gyr of the Big Bang revealed by ALMA
C. L. Carilli, D. Riechers, F. Walter +5
We present further analysis of the [CII] 158m fine structure line and thermal dust continuum emission from the archetype extreme starburst/AGN group of galaxies in the early Uni…
The VIRUS-P Exploration of Nearby Galaxies (VENGA): The Xco Gradient in NGC 628
Guillermo A. Blanc, Andreas Schruba, Neal J. Evans +13
We measure the radial profile of the 12CO(1-0) to H_2 conversion factor (Xco) in NGC 628. The Hαemission from the VENGA integral field spectroscopy is used to map the star formatio…
Centauri A in the far infrared
R. Liseau, B. Montesinos, G. Olofsson +15
Chromospheres and coronae are common phenomena on solar-type stars. Understanding the energy transfer to these heated atmospheric layers requires direct access to the relevant empi…
CLASH: The enhanced lensing efficiency of the highly elongated merging cluster MACS J0416.1-2403
A. Zitrin, M. Meneghetti, K. Umetsu +21
We perform a strong-lensing analysis of the merging galaxy cluster MACS J0416.1-2403 (M0416; z=0.42) in recent CLASH/HST observations. We identify 70 new multiple images and candid…
Triggered/sequential star formation? A multi-phase ISM study around the prominent IRDC G18.93-0.03
J. Tackenberg, H. Beuther, R. Plume +5
G18.93-0.03 is a prominent dust complex within an 0.8deg long filament, with the molecular clump G18.93/m being IR dark from near IR wavelength up to 160mu. Spitzer composite image…
A lower radius and mass for the transiting extrasolar planet HAT-P-8b
L. Mancini, J. Southworth, S. Ciceri +10
Context. The extrasolar planet HAT-P-8 b was thought to be one of the more inflated transiting hot Jupiters. Aims. By using new and existing photometric data, we computed precise e…
Spectral Fingerprints of Earth-like Planets Around FGK Stars
Sarah Rugheimer, Lisa Kaltenegger, Andras Zsom +2
We present model atmospheres for an Earth-like planet orbiting the entire grid of main sequence FGK stars with effective temperatures ranging from Teff = 4250K to Teff = 7000K in 2…
High Resolution Infrared Imaging & Spectroscopy of the Z Canis Majoris System During Quiescence & Outburst
Sasha Hinkley, Lynne Hillenbrand, Ben R. Oppenheimer +21
We present adaptive optics photometry and spectra in the JHKL-bands along with high spectral resolution K-band spectroscopy for each component of the Z Canis Majoris system. Our hi…
Tracing large-scale structures in circumstellar disks with ALMA
Jan Philipp Ruge, Sebastian Wolf, Ana L. Uribe +1
Planets are supposed to form in circumstellar disks. The gravitational potential of a planet perturbs the disk and leads to characteristic structures, i.e. spiral waves and gaps, i…
MOA-2010-BLG-073L: An M-Dwarf with a Substellar Companion at the Planet/Brown Dwarf Boundary
R. A. Street, J. -Y. Choi, Y. Tsapras +129
We present an analysis of the anomalous microlensing event, MOA-2010-BLG-073, announced by the Microlensing Observations in Astrophysics survey on 2010-03-18. This event was remark…
The ESPRI project: astrometric exoplanet search with PRIMA I. Instrument description and performance of first light observations
J. Sahlmann, T. Henning, D. Queloz +42
The ESPRI project relies on the astrometric capabilities offered by the PRIMA facility of the Very Large Telescope Interferometer for the discovery and study of planetary systems.…
Kinks and Dents in Protoplanetary Disks: Rapid Infrared Variability as Evidence for Large Structural Perturbations
Kevin Flaherty, james Muzerolle, George Rieke +4
We report on synoptic observations at 3.6 and 4.5micron of young stellar objects in IC 348 with 38 epochs covering 40 days. We find that among the detected cluster members, 338 at…
The standard model of low-mass star formation applied to massive stars: a multi-wavelength picture of AFGL 2591
K. G. Johnston, D. S. Shepherd, T. P. Robitaille +1
This paper aims to investigate the hypothesis that the embedded luminous star AFGL2591-VLA3 (2.3E5Lsun at 3.33kpc) is forming according to a scaled-up version of a low-mass star fo…
Spiral Arms in the Asymmetrically Illuminated Disk of MWC 758 and Constraints on Giant Planets
C. A. Grady, T. Muto, J. Hashimoto +71
We present the first near-IR scattered light detection of the transitional disk associated with the Herbig Ae star MWC 758 using data obtained as part of the Strategic Exploration…
Results from HOPS: A Multiwavelength Census of Orion Protostars
William J. Fischer, S. Thomas Megeath, Amelia M. Stutz +6
Surveys with the Spitzer and Herschel space observatories are now enabling the discovery and characterization of large samples of protostars in nearby molecular clouds, providing t…
Three Dimensional Structure of Relativistic Jet Formation
Oliver Porth
Using high resolution adaptive mesh refinement simulations in 3D, we investigate the formation of relativistic jets from rotating magnetospheres. Here, we focus on the development…
The dependence of tidal stripping efficiency on the satellite and host galaxy morphology
Jiang Chang, Andrea V. Maccio', Xi Kang
In this paper we study the tidal stripping process for satellite galaxies orbiting around a massive host galaxy, and focus on its dependence on the morphology of both satellite and…
The Arches cluster out to its tidal radius: dynamical mass segregation and the effect of the extinction law on the stellar mass function
Maryam Habibi, Andrea Stolte, Wolfgang Brandner +2
The Galactic center is the most active site of star formation in the Milky Way Galaxy, where particularly high-mass stars have formed very recently and are still forming today. How…
Hints on the Nature of Dark Matter from the Properties of Milky Way Satellites
Donnino Anderhalden, Aurel Schneider, Andrea V. Maccio +2
The nature of dark matter is still unknown and one of the most fundamental scientific mysteries. Although successfully describing large scales, the standard cold dark matter model…
The CO-to-H2 Conversion Factor and Dust-to-Gas Ratio on Kiloparsec Scales in Nearby Galaxies
K. M. Sandstrom, A. K. Leroy, F. Walter +42
We present kiloparsec (kpc) spatial resolution maps of the CO-to-H2 conversion factor (alpha_co) and dust-to-gas ratio (DGR) in 26 nearby, star-forming galaxies. We have simultaneo…
Constraining the Galactic potential via action-based distribution functions for mono-abundance stellar populations
Yuan-Sen Ting, Hans-Walter Rix, Jo Bovy +1
We present a rigorous and practical way of constraining the Galactic potential based on the phase-space information for many individual stars. Such an approach is needed to dynamic…