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Polarization in young open cluster NGC 6823
Biman J. Medhi, Maheswar. G, J. C. Pandey +2
We present multiwavelength linear polarimetric observations of 104 stars towards the region of young open cluster NGC 6823. The polarization towards NGC 6823 is dominated by foregr…
Studies of Expolanets and Solar Systems with SPICA
Michihiro Takami, Motohide Tamura, Keigo Enya +13
The SPace Infrared telescope for Cosmology and Astrophysics (SPICA) is a proposed mid-to-far infrared (4-200 um) astronomy mission, scheduled for launch in 2017. A single, 3.5m ape…
Magnetic Field Structure of the HH 1-2 Region: Near-Infrared Polarimetry of Point-Like Sources
Jungmi Kwon, Minho Choi, Soojong Pak +4
The HH 1-2 region in the L1641 molecular cloud was observed in the near-IR J, H, and Ks bands, and imaging polarimetry was performed. Seventy six point-like sources were detected i…
Discovery of the Coldest Imaged Companion of a Sun-Like Star
Christian Thalmann, Joseph Carson, Markus Janson +17
We present the discovery of a brown dwarf or possible planet at a projected separation of 1.9" = 29 AU around the star GJ 758, placing it between the separations at which substella…
First Evidence of a Retrograde Orbit of Transiting Exoplanet HAT-P-7b
Norio Narita, Bun'ei Sato, Teruyuki Hirano +1
We present the first evidence of a retrograde orbit of the transiting exoplanet HAT-P-7b. The discovery is based on a measurement of the Rossiter-McLaughlin effect with the Subaru…
Near-infrared Polarimetry of flares from Sgr A* with Subaru/CIAO
Shogo Nishiyama, Motohide Tamura, Hirofumi Hatano +5
We have performed near-infrared monitoring observations of Sgr A*, the Galactic center radio source associated with a supermassive black hole, with the near-infrared camera CIAO an…