10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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39 papers · 2 filters
An image of the dust sublimation region in the nucleus of NGC 1068
GRAVITY Collaboration, O. Pfuhl, R. Davies +40
We present near-infrared interferometric data on the Seyfert 2 galaxy NGC 1068, obtained with the GRAVITY instrument on the European Southern Observatory Very Large Telescope Inter…
The dynamically young outflow of the Class 0 protostar Cha-MMS1
L. A. Busch, A. Belloche, S. Cabrit +2
On the basis of its low luminosity, its chemical composition, and the absence of a large-scale outflow, the dense core Cha-MMS1 located in the Chamaeleon I molecular cloud was prop…
Multiple nitrogen reservoirs in a protoplanetary disk at the epoch of comet and giant planet formation
Pierre Hily-Blant, Victor Magalhaes de Souza, Joel Kastner +1
The isotopic ratio of nitrogen measured in primitive Solar System bodies shows a broad range of values, the origin of which remains unknown. One key question is whether these isoto…
The NIKA polarimeter on science targets. Crab nebula observations at 150 GHz and dual-band polarization images of Orion Molecular Cloud OMC-1
A. Ritacco, R. Adam, P. Ade +39
We present here the polarization system of the NIKA camera and give a summary of the main results obtained and performed studies on Orion and the Crab nebula. The polarization syst…
GASTON: Galactic Star Formation with NIKA2: A new population of cold massive sources discovered
N. Peretto, A. Rigby, R. Adam +43
Understanding where and when the mass of stars is determined is one of the fundamental, mostly unsolved, questions in astronomy. Here, we present the first results of GASTON, the G…
Multi-wavelength campaign on NGC 7469 V. Analysis of the HST/COS observations: Super solar metallicity, distance, and trough variation models
N. Arav, X. Xu, G. A. Kriss +18
Aims. Our aim is to determine the distance of the UV outflow components from the central source, their abundances and total column density, and the mechanism responsible for their…
A SCUBA-2 Selected Herschel-SPIRE Dropout and the Nature of this Population
J. Greenslade, E. Aguilar, D. L. Clements +19
Dusty star-forming galaxies (DSFGs) detected at provide important examples of the first generations of massive galaxies. However, few examples with spectroscopic confirmati…
The resolved size and structure of hot dust in the immediate vicinity of AGN
GRAVITY Collaboration, J. Dexter, J. Shangguan +42
We use VLTI/GRAVITY near-infrared interferometry measurements of 8 bright, Type 1 AGN to study the size and structure of hot dust heated by the central engine. We partially resolve…
Molecules in the CepE-mm jet: evidence for shock-driven photochemistry?
J. Ospina-Zamudio, B. Lefloch, C. Favre +6
The chemical composition of protostellar jets and its origin are still badly understood. More observational constraints are needed to make progress. With that objective, we have ca…
Are Milky-Way dwarf-spheroidal galaxies dark-matter free?
F. Hammer, Y. B. Yang, J. L. Wang +4
We have found that the high velocity dispersions of dwarf spheroidal galaxies (dSphs) can be well explained by Milky Way (MW) tidal shocks, which reproduce precisely the gravitatio…
Interferometric observations of warm deuterated methanol in the inner regions of low-mass protostars
Vianney Taquet, Eleonora Bianchi, Claudio Codella +7
Methanol is a key species in astrochemistry since it is the most abundant organic molecule in the ISM and is thought to be the mother molecule of many complex organic species. Esti…
Scalar field effects on the orbit of S2 star
António Amorim, Michael Bauböck, Myriam Benisty +35
Precise measurements of the S-stars orbiting SgrA* have set strong constraints on the nature of the compact object at the centre of the Milky Way. The presence of a black hole in t…
KFPA Examinations of Young STellar Object Natal Environments (KEYSTONE): Hierarchical Ammonia Structures in Galactic Giant Molecular Clouds
Jared Keown, James Di Francesco, Erik Rosolowsky +23
We present initial results from the K-band focal plane array Examinations of Young STellar Object Natal Environments (KEYSTONE) survey, a large project on the 100-m Green Bank Tele…
Consistency of the Infrared Variability of Sgr A* over 22 years
Zhuo Chen, E. Gallego-Cano, T. Do +14
We report new infrared measurements of the supermassive black hole at the Galactic Center, Sgr A*, over a decade that was previously inaccessible at these wavelengths. This enables…
An Episodic Wide-angle Outflow in HH 46/47
Yichen Zhang, Hector G. Arce, Diego Mardones +7
During star formation, the accretion disk drives fast MHD winds which usually contain two components, a collimated jet and a radially distributed wide-angle wind. These winds entra…
A Maximum Parsimony analysis of the effect of the environment on the evolution of galaxies
Didier Fraix-Burnet, Mauro d'Onofrio, Paola Marziani
Context. Galaxy evolution and the effect of environment are most often studied using scaling relations or some regression analyses around some given property. These approaches howe…
Relativistic redshift of the star S0-2 orbiting the Galactic center supermassive black hole
Tuan Do, Aurelien Hees, Andrea Ghez +26
General Relativity predicts that a star passing close to a supermassive black hole should exhibit a relativistic redshift. We test this using observations of the Galactic center st…
Cyanoacetylene in the outflow/hot molecular core G331.512-0.103
N. U. Duronea, L. Bronfman, E. Mendoza +10
Using APEX-1 and APEX-2 observations, we have detected and studied the rotational lines of the HCN molecule (cyanoacetylene) in the powerful outflow/hot molecular core G331.512…
Multi-wavelength Campaign on NGC 7469 VI. Photoionisation Modelling of the Emission Line Regions and the Warm Absorber
S. Grafton-Waters, G. Branduardi-Raymont, M. Mehdipour +16
Aims. We aim to investigate and characterise the photoionised X-ray emission line regions within NGC 7469. Methods. We apply the photoionisation model, PION, within the spectral fi…
The Southern Photometric Local Universe Survey (S-PLUS): improved SEDs, morphologies and redshifts with 12 optical filters
C. Mendes de Oliveira, T. Ribeiro, W. Schoenell +142
The Southern Photometric Local Universe Survey (S-PLUS) is imaging ~9300 deg^2 of the celestial sphere in twelve optical bands using a dedicated 0.8 m robotic telescope, the T80-So…
Impact of nonconvergence and various approximations of the partition function on the molecular column densities in the interstellar medium
Miguel Carvajal, Cécile Favre, Isabelle Kleiner +3
We emphasize that the completeness of the partition function, that is, the use of a converged partition function at the typical temperature range of the survey, is very important t…
Sulfur Chemistry in L1157-B1
Jonathan Holdship, Izaskun Jimenez-Serra, Serena Viti +7
The main carrier of sulfur in dense clouds, where it is depleted from the gas phase, remains a mystery. Shock waves in young molecular outflows disrupt the ice mantles and allow us…
Molecular analysis of a high-mass prestellar core candidate in W43-MM1
J. Molet, N. Brouillet, T. Nony +6
High-mass analogues of low-mass prestellar cores are searched for to constrain the models of high-mass star formation. Several high-mass cores, at various evolutionary stages, have…
Exposing the plural nature of molecular clouds : Extracting filaments and the CIB against the true scale-free interstellar medium
J. -F. Robitaille, F. Motte, N. Schneider +2
We present the Multiscale non-Gaussian Segmentation (MnGSeg) analysis technique. This wavelet based method combines the analysis of the probability distribution function (PDF) of m…