235 citations · 2.4k across the 57 of their papers we have counts for
58 papers
Exploring the nature of compact radio sources associated to UCHII regions
Josep M. Masqué, Luis F. Rodríguez, Sergio A. Dzib +5
We present Very Large Array 7 mm continuum observations of four Ultra-Compact (UC)HII regions, observed previously at 1.3 cm, in order to investigate the nature of the compact radi…
A photoionized accretion disk around a young high-mass star
Andrés E. Guzmán, Patricio Sanhueza, Luis Zapata +2
We present high spatial resolution ( au) observations of the high-mass young stellar object (HMYSO) G345.4938+01.4677 made using the Atacama Large Millimeter/sub-millimeter Arr…
A Radio Pinwheel Emanating from WR147
Luis F. Rodríguez, Jane Arthur, Gabriela Montes +2
Wolf-Rayet (WR) stars are evolved massive stars, presumably on their way to becoming supernova. They are characterized by high luminosities and fast and dense stellar winds. We hav…
ALMA observations of two massive and dense MALT90 clumps
Sudeep Neupane, Guido Garay, Yanett Contreras +2
We report Atacama Large Millimeter Array observations of 3 mm dust continuum emission and line emission, in HCO, HCO, NH and CHCN, towards two…
The Radial Distribution of Dust Particles in the HL Tau Disk from ALMA and VLA Observations
Carlos Carrasco-González, Anibal Sierra, Mario Flock +13
Understanding planet formation requires to discern how dust grows in protoplanetary disks. An important parameter to measure in disks is the maximum dust grain size present. This i…
On the nature of the compact sources in IRAS 16293-2422 seen in at centimeter to sub-millimeter wavelengths
Antonio Hernández-Gómez, Laurent Loinard, Claire J. Chandler +10
We present multi-epoch continuum observations of the Class 0 protostellar system IRAS 16293-2422 taken with the Very Large Array (VLA) at multiple wavelengths between 7 mm and 15 c…
Gaia-DR2 confirms VLBA parallaxes in Ophiuchus, Serpens and Aquila
Gisela N. Ortiz-León, Laurent Loinard, Sergio A. Dzib +9
We present Gaia-DR2 astrometry of a sample of YSO candidates in Ophiuchus, Serpens Main and Serpens South/W40 in the Aquila Rift, which had been mainly identified by their infrared…
Distances and Kinematics of Gould Belt Star-Forming Regions with Gaia DR2 results
Sergio A. Dzib, Laurent Loinard, Gisela N. Ortiz-León +2
We present an analysis of the astrometric results from Gaia second data release (DR2) to Young Stellar Objects (YSOs) in star-forming regions related to the Gould Belt. These regio…
On the Effects of Self-Obscuration in the (Sub-)Millimeter Spectral Indices and Appearance of Protostellar Disks
Roberto Galván-Madrid, Hauyu Baobab Liu, Andrés F. Izquierdo +5
In this paper we explore the effects of self-obscuration in protostellar disks with a radially decreasing temperature gradient and a colder midplane. We are motivated by recent rep…
The Enigmatic compact radio source coincident with the energetic X-ray pulsar PSR J18131749 and HESS J1813178
Sergio A. Dzib, Luis F. Rodríguez, Ramesh Karupussamy +2
New VLA detections of the variable radio continuum source VLA J181335.1174957, associated with the energetic X-ray pulsar PSR~J18131749 and the TeV source HESS J1813-178, are…
The Gould's Belt Distances Survey (GOBELINS). V. Distances and Kinematics of the Perseus molecular cloud
Gisela N. Ortiz-León, Laurent Loinard, Sergio A. Dzib +10
We derive the distance and structure of the Perseus molecular cloud by combining trigonometric parallaxes from Very Long Baseline Array (VLBA) observations, taken as part of the GO…
Resolving the Structure and Kinematics of the Youngest HII Regions and Radio Jets from Young Stellar Objects
Roberto Galván-Madrid, Maite Beltrán, Adam Ginsburg +4
In this contribution we explore the new science that a Next Generation Very Large Array (ngVLA) would be able to perform on the topics of the youngest HII regions and (proto)stella…
VLBA Observations of Strong Anisotripic Radio Scattering towards the Orion Nebula
Marina Kounkel, Lee Hartmann, Laurent Loinard +6
We present observations of VLBA 20, a radio source found towards the edge of the Orion Nebula Cluster (ONC). Nonthermal emission dominates the spectral energy distribution of this…
ALMA Reveals A Collision Between Protostellar Outflows in BHR71
Luis A. Zapata, Manuel Fernández-López, Luis F. Rodríguez +4
For a binary protostellar outflow system in which its members are located so close to each other (the separation being smaller than the addition of the widths of the flows) and wit…
The Highly Collimated Radio Jet of HH 80-81: Structure and Non-Thermal Emission
Adriana Rodríguez-Kamenetzky, Carlos Carrasco-González, Anabella Araudo +7
Radio emission from protostellar jets is usually dominated by free-free emission from thermal electrons. However, in some cases, it has been proposed that non-thermal emission coul…
A concordant scenario to explain FU Ori from deep centimeter and millimeter interferometric observations
Hauyu Baobab Liu, Eduard I. Vorobyov, Ruobing Dong +13
We resolved FU Ori at 29-37 GHz using the JVLA with 0.07 resolution, and performed the complementary JVLA 8-10 GHz observations, the SMA 224 GHz and 272 GHz observations,…
Searching for compact radio sources associated to UCHII regions
Josep M. Masqué, Luis F. Rodríguez, Miguel A. Trinidad +4
Ultra-Compact (UC)HII regions represent a very early stage of massive star formation whose structure and evolution are not yet fully understood. Interferometric observations in rec…
The Gould's Belt Distances Survey (GOBELINS) I. Trigonometric parallax distances and depth of the Ophiuchus complex
Gisela N. Ortiz-León, Laurent Loinard, Marina A. Kounkel +14
We present the first results of the Gould's Belt Distances Survey (GOBELINS), a project aimed at measuring the proper motion and trigonometric parallax of a large sample of young s…
Radio Measurements of the stellar proper motions in the core of the Orion Nebula Cluster
Sergio A. Dzib, Laurent Loinard, Luis F. Rodríguez +8
Using multi-epoch VLA observations, covering a time baseline of 29.1 years, we have measured the proper motions of 88 young stars with compact radio emission in the core of the Ori…
The Gould's Belt Distances Survey (GOBELINS) III. The distance to the Serpens/Aquila Molecular Complex
Gisela N. Ortiz-León, Sergio A. Dzib, Marina A. Kounkel +12
We report on new distances and proper motions to seven stars across the Serpens/Aquila complex. The observations were obtained as part of the Gould's Belt Distances Survey (GOBELIN…
The Gould's Belt Distances Survey (GOBELINS) II. Distances and structure towards the Orion Molecular Clouds
Marina Kounkel, Lee Hartmann, Laurent Loinard +12
We present the results of the Gould's Belt Distances Survey (GOBELINS) of young star forming regions towards the Orion Molecular Cloud Complex. We detected 36 YSOs with the Very La…
3.3 cm JVLA observations of transitional disks: searching for centimeter pebbles
Luis A. Zapata, Luis F. Rodríguez, Aina Palau
We present sensitive (rms-noises 4 -- 25 Jy) and high angular resolution (1--2) 8.9 GHz (3.3 cm) Karl G. Jansky Very Large Array (JVLA) radio continuum observati…
VLBA determination of the distance to nearby star-forming regions VII. Monoceros R2
Sergio A. Dzib, Gisela N. Ortiz-León, Laurent Loinard +4
We present a series of sixteen Very Long Baseline Array (VLBA) high angular resolution observations of a cluster of suspected low-mass young stars in the Monoceros R2 region. Four…
Deep VLA observations of nearby star forming regions I: Barnard 59 and Lupus
S. A. Dzib, L. Loinard, S. -N. X. Medina +3
Barnard 59 and Lupus 1 are two nearby star-forming regions visible from the southern hemisphere. In this manuscript, we present deep ( 15 Jy) radio observations (…