1.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of CopenhagenDK232 papers
- Center for Astrophysics Harvard & SmithsonianUS108 papers
- Leiden Observatory67 papers
- Leiden UniversityNL66 papers
- Max Planck Institute for Extraterrestrial PhysicsDE61 papers
- Centre National de la Recherche ScientifiqueFR60 papers
- California Institute of TechnologyUS53 papers
- The University of Texas at AustinUS43 papers
- University of California, BerkeleyUS41 papers
- National Institute for AstrophysicsIT36 papers
- University of CologneDE34 papers
- University of MichiganUS33 papers
238 papers
The structure and characteristic scales of molecular clouds
Sami Dib, Sylvain Bontemps, Nicola Schneider +8
The structure of molecular clouds (MCs) holds important clues on the physical processes that lead to their formation and subsequent evolution. While it is well established that tur…
The Origin of Massive Stars: The Inertial-Inflow Model
Paolo Padoan, Liubin Pan, Mika Juvela +2
We address the problem of the origin of massive stars, namely the origin, path and timescale of the mass flows that create them. Based on extensive numerical simulations, we propos…
Characterizing magnetic field morphologies in three Serpens protostellar cores with ALMA
Valentin J. M. Le Gouellec, Charles L. H. Hull, Anaëlle J. Maury +7
With the aim of characterizing the dynamical processes involved in the formation of young protostars, we present high angular resolution ALMA dust polarization observations of the…
An 11 Earth-Mass, Long-Period Sub-Neptune Orbiting a Sun-like Star
Andrew W. Mayo, Vinesh M. Rajpaul, Lars A. Buchhave +27
Although several thousands of exoplanets have now been detected and characterized, observational biases have led to a paucity of long-period, low-mass exoplanets with measured mass…
AMBITION -- Comet Nucleus Cryogenic Sample Return (White paper for ESA's Voyage 2050 programme)
D. Bockelée-Morvan, G. Filacchione, K. Altwegg +27
This white paper proposes that AMBITION, a Comet Nucleus Sample Return mission, be a cornerstone of ESA's Voyage 2050 programme. We summarise some of the most important questions s…
The Probability Distribution of Density Fluctuations in Supersonic Turbulence
Liubin Pan, Paolo Padoan, Åke Nordlund
We study density fluctuations in supersonic turbulence using both theoretical methods and numerical simulations. A theoretical formulation is developed for the probability distribu…
Deuterated methyl mercaptan (CHSD): Laboratory rotational spectroscopy and search toward IRAS 16293-2422 B
Olena Zakharenko, Frank Lewen, Vadim V. Ilyushin +4
Methyl mercaptan (also known as methanethiol), CH3SH, has been found in the warm and dense parts of high -- as well as low -- mass star-forming regions. The aim of the present stud…
The ALMA-PILS survey: The first detection of doubly-deuterated methyl formate (CHD2OCHO) in the ISM
S. Manigand, H. Calcutt, J. K. Jørgensen +9
Studies of deuterated isotopologues of complex organic molecules can provide important constraints on their origin in regions of star formation. In particular, the abundances of de…
ALMA detections of the youngest protostars in Ophiuchus
Rachel K. Friesen, Andy Pon, Tyler L. Bourke +4
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of 1.1 mm dust continuum and CO 2-1 emission toward six dense cores within the Ophiuchus molecular cloud…
The Formation Conditions of the Wide Binary Class 0 Protostars within BHR 71
John Tobin, Tyler Bourke, Stacy Mader +7
We present a characterization of the binary protostar system that is forming within a dense core in the isolated dark cloud BHR71. The pair of protostars, IRS1 and IRS2, are both i…
Pebble dynamics and accretion onto rocky planets. II. Radiative models
Andrius Popovas, Åke Nordlund, Jon P. Ramsey
We investigate the effects of radiative energy transfer on a series of nested-grid, high-resolution hydrodynamic simulations of gas and particle dynamics in the vicinity of an Eart…
Detailed Balance and Exact Results for Density Fluctuations in Supersonic Turbulence
Liubin Pan, Paolo Padoan, Åke Nordlund
The probabilistic approach to turbulence is applied to investigate density fluctuations in supersonic turbulence. We derive kinetic equations for the probability distribution funct…
Exploring the Origins of Earth's Nitrogen: Astronomical Observations of Nitrogen-bearing Organics in Protostellar Environments
Thomas S. Rice, Edwin A. Bergin, Jes K. Jørgensen +1
It is not known whether the original carriers of Earth's nitrogen were molecular ices or refractory dust. To investigate this question, we have used data and results of Herschel ob…
The Co-evolution of Disk and Star in Embedded Stages: The Case of the Very Low-mass Protostar
Yuki Okoda, Yoko Oya, Nami Sakai +4
We have observed the CCH (N=3-2, J=7/2-5/2, F=4-3 and 3-2) and SO (6_7-5_6) emission at a 0"2 angular resolution toward the low-mass Class 0 protostellar source IRAS 15398-3359 wit…
The ALMA-PILS survey: Isotopic composition of oxygen-containing complex organic molecules toward IRAS 16293-2422B
J. K. Jørgensen, H. S. P. Müller, H. Calcutt +7
This paper presents a systematic survey of the deuterated and 13C isotopologues of a variety of oxygen-bearing complex organic molecules on Solar System scales toward the protostar…
Characterization of Low Mass K2 Planet Hosts Using Near-Infrared Spectroscopy
Romy Rodríguez Martínez, Sarah Ballard, Andrew Mayo +3
We present moderate resolution near-infrared spectra in and band of M dwarf hosts to candidate transiting exoplanets discovered by NASA's K2 mission. We employ known emp…
The formation of peptide-like molecules on interstellar dust grains
N. F. W. Ligterink, J. Terwisscha van Scheltinga, V. Taquet +4
Molecules with an amide functional group resemble peptide bonds, the molecular bridges that connect amino acids, and may thus be relevant in processes that lead to the formation of…
The ALMA-PILS survey: Stringent limits on small amines and nitrogen-oxides towards IRAS 16293-2422B
N. F. W. Ligterink, H. Calcutt, A. Coutens +8
Hydroxylamine (NHOH) and methylamine (CHNH) have both been suggested as precursors to the formation of amino acids and are therefore of interest to prebiotic chem…
Protostellar half-life: new methodology and estimates
L. E. Kristensen, M. M. Dunham
(Abridged) Protostellar systems evolve from prestellar cores, through the deeply embedded stage and then disk-dominated stage, before they end up on the main sequence. Knowing how…
The ALMA-PILS survey: first detection of methyl isocyanide (CHNC) in a solar-type protostar
H. Calcutt, M. R. Fiechter, E. R. Willis +9
Methyl isocyanide (CHNC) is the isocyanide with the largest number of atoms confirmed in the interstellar medium (ISM), but it is not an abundant molecule, having only been det…
The 0.8-4.5m broadband transmission spectra of TRAPPIST-1 planets
E. Ducrot, M. Sestovic, B. M. Morris +18
The TRAPPIST-1 planetary system represents an exceptional opportunity for the atmospheric characterization of temperate terrestrial exoplanets with the upcoming James Webb Space Te…
A simple and efficient solver for self-gravity in the DISPATCH astrophysical simulation framework
J. P. Ramsey, T. Haugbølle, Å. Nordlund
We describe a simple and effective algorithm for solving Poisson's equation in the context of self-gravity within the DISPATCH astrophysical fluid framework. The algorithm leverage…
Evidence for the start of planet formation in a young circumstellar disk
Daniel Harsono, Per Bjerkeli, Matthijs H. D. van der Wiel +4
The growth of dust grains in protoplanetary disks is a necessary first step towards planet formation. This growth has been inferred via observations of thermal dust emission toward…
Mass Assembly of Stellar Systems and their Evolution with the SMA - 1.3 mm Subcompact Data Release
Ian W. Stephens, Michael M. Dunham, Philip C. Myers +13
We present the Mass Assembly of Stellar Systems and their Evolution with the SMA (MASSES) survey, which uses the Submillimeter Array (SMA) interferometer to map the continuum and m…