69 citations · 181 across the 12 of their papers we have counts for
12 papers
Interstellar Nitrogen Isotope Ratios: Measurements on tracers of CN and CN
J. L. Chen, J. S. Zhang, C. Henkel +6
The nitrogen isotope ratio 14N/15N is a powerful tool to trace Galactic stellar nucleosynthesis and constraining Galactic chemical evolution. Previous observations have found lower…
A Systematic Observational Study on Galactic Interstellar Ratio 18O/17O. II. C18O and C17O J=2-1 Data Analysis
Y. P. Zou, J. S. Zhang, C. Henkel +7
To investigate the relative amount of ejecta from high-mass versus intermediate-mass stars and to trace the chemical evolution of the Galaxy, we have performed with the IRAM 30m an…
Direct measurements of carbon and sulfur isotope ratios in the Milky Way
Y. T. Yan, C. Henkel, C. Kobayashi +7
With the IRAM 30 meter telescope, we performed observations of the = 2-1 transitions of CS, CS, CS, CS, CS, CS, and CS a…
Interstellar Nitrogen Isotope Ratios: New NH3 Data from the Galactic Center out to the Perseus Arm
J. L. Chen, J. S. Zhang, C. Henkel +10
Our aim is to measure the interstellar 14N/15N ratio across the Galaxy, to establish a standard data set on interstellar ammonia isotope ratios, and to provide new constraints on t…
Cyanopolyyne line survey towards high-mass star-forming regions with TMRT
Y. X. Wang, J. S. Zhang, Y. T. Yan +8
We carried out a cyanopolyyne line survey towards a large sample of HMSFRs using the Shanghai Tian Ma 65m Radio Telescope (TMRT). Our sample consisted of 123 targets taken from the…
Discovery of ammonia (9,6) masers in two high-mass star-forming regions
Y. T. Yan, C. Henkel, K. M. Menten +8
Molecular maser lines are signposts of high-mass star formation, probing excitation and kinematics of very compact regions in the close environment of young stellar objects and pro…
Radio continuum properties of OH megamaser galaxies
Yu. V. Sotnikova, Z. Z. Wu, T. V. Mufakharov +13
We present a study of the radio continuum properties of two luminous/ultraluminous infrared galaxy samples: the OH megamaser (OHM) sample (74 objects) and the control sample (128 o…
Galactic interstellar sulfur isotopes: A radial SS gradient?
H. Z. Yu, J. S. Zhang, C. Henkel +9
We present observations of CS, CS, CS and CS J=21 lines toward a large sample of massive star forming regions by using th…
A systematic observational study on Galactic interstellar ratio 18O/17O: I. C18O and C17O J=1-0 data analysis
J. S. Zhang, W. Liu, Y. T. Yan +15
The interstellar oxygen isotopic ratio of 18O/17O can reflect the relative amount of the secular enrichment by ejecta from high-mass versus intermediate-mass stars. Previous observ…
A systematic observational study of radio properties of H2O megamaser Seyfert 2s: A Guide for H2O megamaser surveys
J. S. Zhang, Z. W. Liu, C. Henkel
Analyzing archival data from different telescopes, H2O megamaser Seyfert 2s appeared to exhibit higher nuclear radio luminosities than non-masing Seyfert 2s (Zhang et al. 2012). Th…
A systematic observational study of radio properties of H2O megamaser Seyfert-2 galaxies
Z. W. Liu, J. S. Zhang, C. Henkel +5
A systematic study is performed on radio properties of HO megamaser host Seyfert 2 galaxies, through multi-band radio continuum observations (at 11cm, 6.0 cm, 3.6 cm, 2.0 cm…
Radio properties of H2O maser host galaxies
J. S. Zhang, C. Henkel, Q. Guo +1
The 6 cm and 20 cm radio continuum properties of all 85 galaxies with reported 22 GHz H2O maser emission and luminosity distance D > 0.5 Mpc are studied. For the total of 55 target…