6 papers
A HINSA view of cosmic-ray ionization in IC 348 and NGC 1333: evidence for a strong low-energy cosmic-ray disparity
Gan Luo, Marco Padovani, Daniele Galli +5
The cosmic-ray ionization rate (CRIR) is one of the fundamental parameters influencing the chemical and dynamical evolution of molecular clouds. Although observations in recent yea…
Large scale mapping of [CI] and the [CI]-to-CO transition in Ophiuchus molecular cloud
Jifeng Xia, Ningyu Tang, Thomas G. Bisbas +10
Atomic carbon ([CI]) is a key species in the carbon chemistry of the interstellar medium (ISM). Using the Submillimeter Wave Astronomy Satellite (SWAS), we conducted a [CI](P$_…
Physical Properties and HI-to-H2 Transition Across Taurus Linear Edge
Ningyu Tang, Feihang Miao, Gan Luo +5
Studying the atomic-to-molecular transition is essential for understanding the evolution of interstellar medium. The linear edge of Taurus molecular cloud, clearly identified in th…
Tiny-Scale Properties within the Interstellar Medium towards PSR J16444559: I. Observational Evidence of Turbulence-induced Tiny Scale Atomic Structures
Mengting Liu, Di Li, J. R. Dawson +21
We investigated HI absorption toward a single pulsar, PSR J16444559, and its variability over timescales from days to years, using Murriyang, CSIRO's Parkes Radio Telescope. Our…
First Search for Pulsed CH Maser Emission Stimulated by a Pulsar
Mengting Liu, Di Li, J. R. Dawson +6
We present the first search for pulsed CH maser emission potentially stimulated by PSR J16444559, conducted using the ultra-wide-bandwidth low-frequency receiver on Murriyang, C…
A new measurement of the Galactic C/C gradient from sensitive HCO absorption observations
Gan Luo, Laura Colzi, Tie Liu +4
We present a new constraint on the Galactic C/C gradient with sensitive HCO absorption observations against strong continuum sources. The new measurements suffer…