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23 papers · 1 filter
Star formation activity beyond the outer Arm I: WISE-selected candidate star-forming regions
Natsuko Izumi, Naoto Kobayashi, Chikako Yasui +2
The outer Galaxy beyond the Outer Arm provides a good opportunity to study star formation in an environment significantly different from that in the solar neighborhood. However, st…
Magnetic susceptibility of optimally doped HgBaCuO
Y. Itoh, T. Machi, A. Yamamoto
The magnitude of the powder spin susceptibility of an optimally doped superconductor HgBaCuO (Hg1201) in the normal state is found to be nearly the same as that of La$_…
OGLE-2016-BLG-1190Lb: First Spitzer Bulge Planet Lies Near the Planet/Brown-Dwarf Boundary
Y. -H. Ryu, J. C. Yee, A. Udalski +106
We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar, an assignation that can be confirmed by two…
Method to Estimate the Effective Temperatures of Late-Type Giants using Line-Depth Ratios in the Wavelength Range 0.97-1.32m
Daisuke Taniguchi, Noriyuki Matsunaga, Naoto Kobayashi +7
The effective temperature, one of the most fundamental atmospheric parameters of a star, can be estimated using various methods, and here we focus on the method using line-depth ra…
The path integral of unimodular gravity
R. de Leon Ardon, N. Ohta, R. Percacci
We compute the one-loop effective action in unimodular gravity, starting from two different classical formulations of the theory. We find that the effective action is the same in b…
An Isolated Microlens Observed from K2, Spitzer and Earth
Wei Zhu, A. Udalski, C. Huang +50
We present the result of microlensing event MOA-2016-BLG-290, which received observations from the two-wheel Kepler (K2), Spitzer, as well as ground-based observatories. A joint an…