Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Leiden Observatory3.6k papers
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Max Planck Institute for AstronomyDE1.4k papers
- European Southern ObservatoryCL1.4k papers
- Max Planck Institute for Extraterrestrial PhysicsDE1.3k papers
- California Institute of TechnologyUS1.1k papers
- University of GroningenNL1.1k papers
- Center for Astrophysics Harvard & SmithsonianUS1k papers
- Royal ObservatoryGB942 papers
- University of AmsterdamNL941 papers
- University College LondonGB886 papers
- University of CambridgeGB870 papers
46 papers · 2 filters
Fundamental Vibrational Transition of CO during the Outburst of EX Lupi in 2008
M. Goto, Zs. Regály, C. P. Dullemond +16
We report monitoring observations of the T Tauri star EX Lupi during its outburst in 2008 in the CO fundamental band at 4.6-5.0 um. The observations were carried out at the VLT and…
CORS Baade-Wesselink method in the Walraven photometric system: the Period-Radius and the Period-Luminosity relation of Classical Cepheids
R. Molinaro, V. Ripepi, M. Marconi +4
We present a new derivation of the CORS Baade-Wesselink method in the Walraven photometric system. We solved the complete Baade-Wesselink equation by calibrating the surface bright…
Hunting for millimeter flares from magnetic reconnection in pre-main sequence spectroscopic binaries
Á. Kóspál, D. M. Salter, M. R. Hogerheijde +2
Recent observations of the low-mass pre-main sequence, eccentric spectroscopic binaries DQ Tau and V773 Tau A reveal that their millimeter spectrum is occasionally dominated by fla…
Structure and evolution of debris disks around F-type stars: I. Observations, database and basic evolutionary aspects
A. Moór, I. Pascucci, Á. Kóspál +11
Although photometric and spectroscopic surveys with the Spitzer Space Telescope increased remarkably the number of well studied debris disks around A-type and Sun-like stars, detai…
A Panchromatic View OF NGC 602: Time-Resolved Star Formation with the Hubble and Spitzer Space Telescopes
Lynn Redding Carlson, Marta Sewilo, Margaret Meixner +16
We present the photometric catalogs for the star-forming cluster NGC 602 in the wing of the Small Magellanic Cloud covering a range of wavelengths from optical HST/ACS (F555W, F814…
VLT/X-shooter Spectroscopy of a Dusty Planetary Nebula Discovered with Spitzer/IRS
Isa Oliveira, Roderik A. Overzier, Klaus M. Pontoppidan +2
As part of a mid-infrared spectroscopic survey of young stars with the Spitzer Space Telescope, an unclassified red emission line object was discovered. Based on its high ionizatio…
X-ray impact on the protoplanetary disks around T Tauri stars
G. Aresu, I. Kamp, R. Meijerink +3
Context: T Tauri stars have X-ray luminosities ranging from L_X = 10^28-10^32 erg/s. These luminosities are similar to UV luminosities (L_UV 10^30-10^31 erg/s) and therefore X-rays…
Empirical Constraints on Turbulence in Protoplanetary Accretion Disks
A. Meredith Hughes, David J. Wilner, Sean M. Andrews +2
We present arcsecond-scale Submillimeter Array observations of the CO(3-2) line emission from the disks around the young stars HD 163296 and TW Hya at a spectral resolution of 44 m…
The HDO/H2O ratio in gas in the inner regions of a low-mass protostar
Jes K. Jorgensen, Ewine F. van Dishoeck
The HDO/H2O abundance ratio is thought to be a key diagnostic on the evolution of water during the star- and planet-formation process and thus on its origin on Earth. We here prese…
The Banana Project. III. Spin-orbit Alignment in the Long-period Eclipsing Binary NY Cephei
Simon Albrecht, Joshua Winn, Joshua Carter +2
Binaries are not always neatly aligned. Previous observations of the DI Her system showed that the spin axes of both stars are highly inclined with respect to one another and the o…
The outburst and nature of two young eruptive stars in the North America/Pelican Nebula Complex
Á. Kóspál, P. Ábrahám, J. A. Acosta-Pulido +8
Context. In August 2010, the sudden optical brightening of two young stellar objects, located in the North America/Pelican Nebula Complex, was announced. Early observations indicat…
Dynamics of the 6.7 and 12.2 GHz methanol masers around Cepheus A HW2
K. J. E. Torstensson, H. J. van Langevelde, W. H. T. Vlemmings +1
The 6.7 GHz methanol maser is exclusively associated with high-mass star formation. However, it remains unclear what structures harbour the methanol masers. Cepheus A is one of the…
Water formation at low temperatures by surface O2 hydrogenation II: the reaction network
H. M. Cuppen, S. Ioppolo, C. Romanzin +1
Water is abundantly present in the Universe. It is the main component of interstellar ice mantles and a key ingredient for life. Water in space is mainly formed through surface rea…
Water formation at low temperatures by surface O2 hydrogenation I: characterization of ice penetration
S. Ioppolo, H. M. Cuppen, C. Romanzin +2
Water is the main component of interstellar ice mantles, is abundant in the solar system and is a crucial ingredient for life. The formation of this molecule in the interstellar me…
Magnetic field measurements and wind-line variability of OB-type stars
R. S. Schnerr, H. F. Henrichs, C. Neiner +8
Context. The first magnetic fields in O- and B-type stars that do not belong to the Bp-star class, have been discovered. The cyclic UV wind-line variability, which has been observe…
A Spitzer c2d Legacy Survey to Identify and Characterize Disks with Inner Dust Holes
Bruno Merín, Joanna M. Brown, Isa Oliveira +17
Understanding how disks dissipate is essential to studies of planet formation. However, identifying exactly how dust and gas dissipates is complicated due to difficulty in finding…
Herschel-HIFI observations of high-J CO lines in the NGC 1333 low-mass star-forming region
U. A. Yıldız, E. F. van Dishoeck, L. E. Kristensen +60
Herschel-HIFI observations of high-J lines (up to J_u=10) of 12CO, 13CO and C18O are presented toward three deeply embedded low-mass protostars, NGC 1333 IRAS 2A, IRAS 4A, and IRAS…
LIME - a flexible, non-LTE line excitation and radiation transfer method for millimeter and far-infrared wavelengths
C. Brinch, M. R. Hogerheijde
We present a new code for solving the molecular and atomic excitation and radiation transfer problem in a molecular gas and predicting emergent spectra. This code works in arbitrar…
HERSCHEL-HIFI spectroscopy of the intermediate mass protostar NGC7129 FIRS 2
D. Johnstone, M. Fich, C. McCoey +58
HERSCHEL-HIFI observations of water from the intermediate mass protostar NGC7129 FIRS 2 provide a powerful diagnostic of the physical conditions in this star formation environment.…
Recurring millimeter flares as evidence for star-star magnetic reconnection events in the DQ Tauri PMS binary system
D. M. Salter, Á. Kóspál, K. V. Getman +5
Observations of the T Tauri spectroscopic binary DQ Tau in April 2008 captured an unusual flare at 3 mm, which peaked at an observed max flux of 0.5 Jy (about 27x the quiescent val…
Herschel observations of EXtra-Ordinary Sources: The Terahertz spectrum of Orion KL seen at high spectral resolution
N. R. Crockett, E. A. Bergin, S. Wang +60
We present the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4 - 1906.8 GHz (band 7b) obtained using the HI…
Ortho-to-para ratio of interstellar heavy water
C. Vastel, C. Ceccarelli, E. Caux +65
Despite the low elemental deuterium abundance in the Galaxy, enhanced molecular D/H ratios have been found in the environments of low-mass star forming regions, and in particular t…
Herschel-HIFI detections of hydrides towards AFGL 2591 (Envelope emission versus tenuous cloud absorption)
S. Bruderer, A. O. Benz, E. F. van Dishoeck +65
The Heterodyne Instrument for the Far Infrared (HIFI) onboard the Herschel Space Observatory allows the first observations of light diatomic molecules at high spectral resolution a…
Structure and Composition of Two Transitional Circumstellar Disks in Corona Australis
A. M. Hughes, S. M. Andrews, D. J. Wilner +10
The late stages of evolution of the primordial circumstellar disks surrounding young stars are poorly understood, yet vital to constrain theories of planet formation. We consider b…