Discovery of Two Small High-velocity Compact Clouds in the Central 10 pc of Our Galaxy

Shunya Takekawa, Tomoharu Oka, Yuhei Iwata, Sekito Tokuyama, Mariko Nomura

研究成果: Article査読

12 被引用数 (Scopus)

抄録

We discovered two small high-velocity compact clouds (HVCCs) in the HCN J = 4-3 and J = 3-2 maps of the central 20 pc of our Galaxy. Both HVCCs have broad velocity widths (ΔV ≳ 40 km s-1) and compact sizes (d ∼1 Pc), and originate from the dense molecular clouds in the position-velocity space. One of them has a faint counterpart in a Paschen-α image. Their spatial structure, kinematics, and absence of luminous stellar object are compatible with the notion that each of the small HVCCs is driven by the plunge of an invisible compact object into a molecular cloud. Such objects are most likely inactive, isolated black holes.

本文言語English
論文番号L11
ジャーナルAstrophysical Journal Letters
843
1
DOI
出版ステータスPublished - 2017 7 1

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

フィンガープリント

「Discovery of Two Small High-velocity Compact Clouds in the Central 10 pc of Our Galaxy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル