Unveiling extensive clouds of dark gas in the solar neighborhood
被引:361
作者:
Grenier, IA
论文数: 0引用数: 0
h-index: 0
机构:
Univ Paris 07, CEA, CNRS, DSM,DAPNIA,Serv Astrophys, F-91191 Gif Sur Yvette, FranceUniv Paris 07, CEA, CNRS, DSM,DAPNIA,Serv Astrophys, F-91191 Gif Sur Yvette, France
Grenier, IA
[1
]
Casandjian, JM
论文数: 0引用数: 0
h-index: 0
机构:Univ Paris 07, CEA, CNRS, DSM,DAPNIA,Serv Astrophys, F-91191 Gif Sur Yvette, France
Casandjian, JM
Terrier, R
论文数: 0引用数: 0
h-index: 0
机构:Univ Paris 07, CEA, CNRS, DSM,DAPNIA,Serv Astrophys, F-91191 Gif Sur Yvette, France
Terrier, R
机构:
[1] Univ Paris 07, CEA, CNRS, DSM,DAPNIA,Serv Astrophys, F-91191 Gif Sur Yvette, France
[2] CEA, CNRS, Grand Accelerateur Natl Ions Lourds, F-14076 Caen, France
[3] Univ Paris 07, CNRS, CEA, F-75005 Paris, France
From the comparison of interstellar gas tracers in the solar neighborhood (HI and CO lines from the atomic and molecular gas, dust thermal emission, and gamma rays from cosmic-ray interactions with gas), we unveil vast clouds of cold dust and dark gas, invisible in HI and CO but detected in gamma rays. They surround all the nearby CO clouds and bridge the dense cores to broader atomic clouds, thus providing a key link in the evolution of interstellar clouds. The relation between the masses. in the molecular, dark, and atomic phases in the local clouds implies a dark gas mass in the Milky Way comparable to the molecular one.