105 citations · 396 across the 12 of their papers we have counts for
12 papers
Core to ultracompact HII region evolution in the W49A massive protocluster
T. Nony, R. Galván-Madrid, N. Brouillet +10
We aim to identify and characterize cores in the high-mass proto-cluster W49, determine their evolutionary stages and measure the associated lifetimes. We built a catalog of 129 co…
Distributed star formation throughout the Galactic Center cloud Sgr B2
A. G. Ginsburg, John Bally, Ashley Barnes +23
We report ALMA observations with resolution " at 3 mm of the extended Sgr B2 cloud in the Central Molecular Zone (CMZ). We detect 271 compact sources, most of which are…
The Remote Observatories of the Southeastern Association for Research in Astronomy (SARA)
William C. Keel, Terry Oswalt, Peter Mack +11
We describe the remote facilities operated by the Southeastern Association for Research in Astronomy (SARA), a consortium of colleges and universities in the US partnered with Lowe…
Evidence of Short Timescale Flux Density Variations of UC HII regions in Sgr B2 Main and North
C. G. De Pree, T. Peters, M. -M. Mac Low +6
We have recently published observations of significant flux density variations at 1.3 cm in HII regions in the star forming regions Sgr B2 Main and North (De Pree et al. 2014). To…
Extremely Energetic Outflow and Decelerated Expansion in W49N
Tie Liu, Kee-Tae Kim, Yuefang Wu +10
W49N is a mini-starburst in the Milky Way and thus an ideal laboratory for high-mass star formation studies. Due to its large distance (11.1 kpc), the kinematics in…
Flickering of 1.3 cm Sources in Sgr B2: Towards a Solution to the Ultracompact HII Region Lifetime Problem
C. G. De Pree, T. Peters, M. -M. Mac Low +6
Accretion flows onto massive stars must transfer mass so quickly that they are themselves gravitationally unstable, forming dense clumps and filaments. These density perturbations…
MUSCLE W49 : A Multi-Scale Continuum and Line Exploration of the Most Luminous Star Formation Region in the Milky Way. I. Data and The Mass Structure of the Giant Molecular Cloud
R. Galván-Madrid, H. B. Liu, Z. -Y. Zhang +9
The Multi-Scale Continuum and Line Exploration of W49 (MUSCLE W49) is a comprehensive gas and dust survey of the giant molecular cloud (GMC) of W49A, the most luminous star-formati…
A Search for the Transit of HD 168443b: Improved Orbital Parameters and Photometry
Genady Pilyavsky, Suvrath Mahadevan, Stephen R. Kane +13
The discovery of transiting planets around bright stars holds the potential to greatly enhance our understanding of planetary atmospheres. In this work we present the search for tr…
Ionized Gas Kinematics and Morphology in Sgr B2 Main on 1000 AU Scales
Christopher G. De Pree, David J. Wilner, W. Miller Goss
We have imaged the Sgr B2 Main region with the Very Large Array in the BnA configuration ( = 0\farcs13) in both the H52 (45.453 GHz) radio recombination line (RRL) and…
Massive star formation and feedback in W49A: The source of our Galaxy's most luminous water maser outflow
Nathan Smith, Barbara A. Whitney, Peter S. Conti +2
We present high spatial resolution mid-IR images of the ring of UCHII regions in W49A obtained at Gemini North, allowing us to identify the driving source of its powerful H2O maser…
WSRT and VLA Observations of the 6 cm and 2 cm lines of H2CO in the direction of W 58 C1(ON3) and W 58 C2
H. R. Dickel, W. M. Goss, C. G. De Pree
Absorption in the J{K-K+} = 2{11}-2{12} transition of formaldehyde at 2 cm towards the ultracompact HII regions C1 and C2 of W 58 has been observed with the VLA with an angular res…
NGC 3576 and NGC 3603: Two Luminous Southern HII Regions Observed at High Resolution with the Australia Telescope Compact Array
C. G. De Pree, M. Nysewander, W. M. Goss
NGC 3576 (G291.28-0.71; l=291.3o, b=-0.7o) and NGC 3603 (G291.58-0.43; l=291.6o, b=-0.5o) are optically visible, luminous HII regions located at distances of 3.0 kpc and 6.1 kpc, r…