A Distinct Structure inside the Galactic Bar

@article{Nishiyama2005ADS,
  title={A Distinct Structure inside the Galactic Bar},
  author={Shogo Nishiyama and Tetsuya Nagata and Daisuke Baba and Y. Haba and Ryota Kadowaki and Daisuke Kato and Mikio Kurita and Chie Nagashima and Takahiro Nagayama and Yuka Murai and Yasushi Nakajima and Motohide Tamura and Hidehiko Nakaya and Koji Sugitani and Takahiro Naoi and Noriyuki Matsunaga and Toshihiko Tanab{\'e} and Nobuhiko Kusakabe and Shuji Sato},
  journal={The Astrophysical Journal},
  year={2005},
  volume={621}
}
We present the result of a near-infrared (JHKs) survey along the Galactic plane, -105 ≤ l ≤ 105 and b = +1°, with the IRSF 1.4 m telescope and the SIRIUS camera. Ks versus H - Ks color-magnitude diagrams reveal a well-defined population of red clump stars whose apparent magnitude peak changes continuously along the Galactic plane, from Ks = 13.4 at l = -10° to Ks = 12.2 at l = 10° after dereddening. This variation can be explained by the barlike structure found in previous studies, but we find… Expand

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