209 citations · 4.5k across the 167 of their papers we have counts for
8 papers · 1 filter
Diversity of chemistry and excitation conditions in the high-mass star forming complex W33
K. Immer, R. Galván-Madrid, C. König +2
The object W33 is a giant molecular cloud that contains star forming regions at various evolutionary stages from quiescent clumps to developed H II regions. Since its star forming…
Constraints on photoevaporation models from (lack of) radio emission in the Corona Australis protoplanetary disks
Roberto Galván-Madrid, Hauyu Baobab Liu, Carlo Felice Manara +8
Photoevaporation due to high-energy stellar photons is thought to be one of the main drivers of protoplanetary disk dispersal. The fully or partially ionized disk surface is expect…
Submillimeter Array Observations of Magnetic Fields in G240.31+0.07: an Hourglass in a Massive Cluster-forming Core
Keping Qiu, Qizhou Zhang, Karl M. Menten +3
We report the first detection of an hourglass magnetic field aligned with a well-defined outflow-rotation system in a high-mass star-forming region. The observations were performed…
Magnetic Fields and Massive Star Formation
Qizhou Zhang, Keping Qiu, Josep M. Girart +17
Massive stars ( \msun) typically form in parsec-scale molecular clumps that collapse and fragment, leading to the birth of a cluster of stellar objects. We investigate the r…
VLA observations of ammonia in high-mass star formation regions
Xing Lu, Qizhou Zhang, Hauyu Baobab Liu +2
We report systematic mapping observations of the NH (1,1) and (2,2) inversion lines towards 62 high-mass star-forming regions using VLA in its D and DnC array configurations.…
Measuring Mass Accretion Rate onto the Supermassive Black Hole in M 87 Using Faraday Rotation Measure with the Submillimeter Array
C. Y. Kuo, K. Asada, R. Rao +11
We present the first constraint on Faraday rotation measure (RM) at submillimeter wavelengths for the nucleus of M 87. By fitting the polarization position angles () observed wi…