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H2O masers in W49 North and Sagittarius B2
Using the Very Large Array (VLA) of the National Radio Astronomy Observatory in the A and B configurations, we have obtained simultaneous high-resolution observations of both... -
CH_3_OH 7_0_-6_1_ A^+^ maser sources
We present a Very Large Array survey of 44 massive star-forming regions in the 44GHz 7_0_-6_1_ A^+^ methanol transition; 37 fields showed maser emission. Thirty-one sources were... -
Giant molecular clouds in M33
We present the first interferometric ^12^CO (J=1->0) map of the entire H{alpha} disk of M33. The 13" diameter synthesized beam corresponds to a linear resolution of 50pc,... -
H_2_CO and H{alpha} observations of UC HII
We report observations of the H110{alpha} radio recombination line and H_2_CO (1_10_-1_11_) toward 21 ultracompact H II regions with the Arecibo 305m radio telescope. We detect... -
VLA radio continuum survey of Seyfert galaxies
We have used the Very Large Array (VLA) to conduct a survey for radio continuum emission in the sample of 52 Seyfert nuclei selected from the optical spectroscopic galaxy... -
Gas-rich dwarfs from the POSS-II. III.
We present Arecibo neutral hydrogen data on a sample of optically selected dwarf galaxies. The sample ranges in H I mass from 10^6^ to 5x10^9^M_{sun}, with a mean of... -
Arecibo Dual-Beam Survey
The Arecibo Dual-Beam Survey is a "blind" 21 cm search for galaxies covering ~430deg^2^ of sky. We present the data from the detection survey as well as from the follow-up... -
A database of dense cores mapped in ammonia
We present a database of 264 cores mapped in the (J,K)=(1,1) and (2,2) lines of NH_3_. We list the core gas properties-peak positions, total ammonia column densities, intrinsic... -
Sgr B2 spectral survey
We have surveyed the frequency band 218.30-263.55GHz toward the core positions N and M and the quiescent cloud position NW in the Sgr B2 molecular cloud using the Swedish-ESO... -
PNe in NRAO VLA Sky Survey
The 1.4GHz NRAO VLA Sky Survey (NVSS) images and source catalog were used to detect radio emission from the 885 planetary nebulae north of J2000 declination {delta}=-40{deg} in... -
OH observations of Arecibo OH/IR stars
The Arecibo 1612MHz survey of a complete sample of color-selected IRAS sources with 25{mu}m fluxes S(25)>2 Jy detected 393 OH/IR stars. A complementary 1667 and 1665MHz OH... -
SiO maser sources
The observations in the 28SiO J=1-0 v=1, J=1-0 v=2 lines and the 29SiO J=1-0, v=0 lines were simultaneously made toward 181 color-selected IRAS sources in the outer disk of the... -
mJy radio sources at 1.4 GHz
From the 1.4GHz radio survey of Condon, Dickey, & Salpeter (Cat. ) in a region much devoid of rich galaxy clusters at redshifts z<0.43 we selected a "distant" sample of... -
Inverse MultiView. II. 6.7GHz methanol masers
We present the first results from the Southern Hemisphere Parallax Interferometric Radio Astrometry Legacy Survey: 10{mu}as accurate parallaxes and proper motions for two... -
RadioAstron space VLBI imaging of the M87 jet. I.
We present results from the first 22GHz space very long baseline interferometric (VLBI) imaging observations of M87 by RadioAstron. As a part of the Nearby AGN Key Science... -
MSPES. VI. Analysis of the AP and SP polarization
We have observed 123 pulsars with periods longer than 0.1s in the Meterwavelength Single Pulse Polarimetric Emission Survey. In this work, a detailed study of the polarization... -
High-mass SFR masers with VLBI & external MW-like gal.
In spite of much work, the overall spiral structure morphology of the Milky Way remains somewhat uncertain. In the last two decades, accurate distance measurements have provided... -
Complex organic molecules in high-mass SFRs with ALMA
Recent astrochemical models and experiments have explained that complex organic molecules (COMs; molecules composed of six or more atoms) are produced on the dust grain mantles... -
44GHz VLA obs. of methanol masers in DR21(OH)
High-mass stars play an important role in the interstellar medium, but much remains to be known about their formation. Class I methanol masers may be unique tracers of an early... -
4.7GHz OH masers in northern star formation regions
We have used the Shanghai Tianma Radio Telescope to search for three OH transitions at 4.7GHz toward 155 northern star formation regions. We detect 4.7GHz OH masers in 18 star...
