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41 papers · 2 filters
Carbon monoxide in an extremely metal-poor galaxy
Yong Shi, Junzhi Wang, Zhi-Yu Zhang +4
Extremely metal-poor galaxies with metallicity below 10% of the solar value in the local universe are the best analogues to investigating the interstellar medium at a quasi-primiti…
Dense gas in low-metallicity galaxies
J. Braine, Y. Shimajiri, P. André +4
Stars form out of the densest parts of molecular clouds. Far-IR emission can be used to estimate the Star Formation Rate (SFR) and high dipole moment molecules, typically HCN, trac…
AGN-Host Connection at 0.5 < z < 2.5: A rapid evolution of AGN fraction in red galaxies during the last 10 Gyr
Tao Wang, D. Elbaz, D. M. Alexander +13
We explore the dependence of the incidence of moderate-luminosity ( erg s) AGNs and the distribution of their accretion rates on host color at 0.5 <…
Deep CFHT Y-band imaging of VVDS-F22 field: I. data products and photometric redshifts
Dezi Liu, Jinyi Yang, Shuo Yuan +5
We present our deep -band imaging data of a two square degree field within the F22 region of the VIMOS VLT Deep Survey. The observations were conducted using the WIRCam instrume…
Dense Gas in the Outer Spiral Arm of M51
Hao Chen, Jonathan Braine, Yu Gao +2
There is a linear relation between the mass of dense gas, traced by the HCN(1-0) luminosity, and the star formation rate (SFR), traced by the far-infrared luminosity. Recent observ…
The quenched mass portion of star-forming galaxies and the origin of the star formation sequence slope
Zhizheng Pan, Xian Zhong Zheng, Xu Kong
Observationally, a massive disk galaxy can harbor a bulge component that is comparably inactive as a quiescent galaxy (QG). It has been speculated that the quenched component conta…