X-RAY DIAGNOSTICS OF GIANT MOLECULAR CLOUDS IN THE GALACTIC CENTER REGION AND PAST ACTIVITY OF Sgr A*

A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole

(2014) Katsuji Koyama et al.   PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

An X-Ray Face-On View of the Sagittarius B Molecular Clouds Observed with Suzaku

(2014) Syukyo G. Ryu et al.   PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

Origin of 6.4 keV Line Emission from Molecular Clouds in the Galactic Center

(2014) Vladimir Dogiel et al.   PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

Time Variability of the Neutral Iron Lines from the Sagittarius B2 Region and Its Implication of a Past Outburst of Sagittarius A$^\ast$

(2014) Tatsuya Inui et al.   PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

Discovery of K-Shell Emission Lines of Neutral Atoms in the Galactic Center Region

(2014) Masayoshi Nobukawa et al.   PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

FADING HARD X-RAY EMISSION FROM THE GALACTIC CENTER MOLECULAR CLOUD Sgr B2

(2010) R. Terrier et al.   ASTROPHYSICAL JOURNAL

DISCOVERY OF A SUPERLUMINAL Fe K ECHO AT THE GALACTIC CENTER: THE GLORIOUS PAST OF Sgr A* PRESERVED BY MOLECULAR CLOUDS

(2010) G. Ponti et al.   ASTROPHYSICAL JOURNAL

A TRIGONOMETRIC PARALLAX OF Sgr B2

(2009) M. J. Reid et al.   ASTROPHYSICAL JOURNAL

THE ORBIT OF THE STAR S2 AROUND SGR A* FROM VERY LARGE TELESCOPE AND KECK DATA

(2009) S. Gillessen et al.   ASTROPHYSICAL JOURNAL