254 citations · 3.7k across the 112 of their papers we have counts for
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Period-luminosity relations of type II Cepheids in the Magellanic Clouds
Noriyuki Matsunaga, Michael W. Feast, Igor Soszynski
Period-luminosity relations (PLRs) of type II Cepheids (T2Cs) in the Small Magellanic Cloud are derived based on OGLE-III, IRSF/SIRIUS and other data, and these are compared with r…
Magnetic Field Configuration at the Galactic Center Investigated by Wide Field Near-Infrared Polarimetry: Transition from a Toroidal to a Poloidal Magnetic Field
Shogo Nishiyama, Hirofumi Hatano, Motohide Tamura +8
We present a large-scale view of the magnetic field in the central 2deg * 2deg region of our Galaxy. The polarization of point sources has been measured in the J, H, and Ks bands u…
Spitzer Spectroscopy of Mass Loss and Dust Production by Evolved Stars in Globular Clusters
G. C. Sloan, N. Matsunaga, M. Matsuura +7
We have observed a sample of 35 long-period variables and four Cepheid variables in the vicinity of 23 Galactic globular clusters using the Infrared Spectrograph on the Spitzer Spa…
Rusty old stars: a source of the missing interstellar iron?
Iain McDonald, Gregory C. Sloan, Albert A. Zijlstra +5
Iron, the Universe's most abundant refractory element, is highly depleted in both circumstellar and interstellar environments, meaning it exists in solid form. The nature of this s…
Asymptotic Giant Branch Stars in the Leo I Dwarf Spheroidal Galaxy
John W. Menzies, Patricia A. Whitelock, Michael W. Feast +1
Twenty six Asymptotic Giant Branch (AGB) variables are identified in the Local Group galaxy Leo I. These include 7 Mira and 5 semi-regular variables for which periods, amplitudes a…