The TRENDS High-contrast Imaging Survey. V. Discovery of an Old and Cold Benchmark T-dwarf Orbiting the Nearby G-star HD 19467

@article{Crepp2014TheTH,
  title={The TRENDS High-contrast Imaging Survey. V. Discovery of an Old and Cold Benchmark T-dwarf Orbiting the Nearby G-star HD 19467},
  author={J. Crepp and J. Johnson and A. Howard and G. Marcy and J. Brewer and D. Fischer and J. Wright and H. Isaacson},
  journal={The Astrophysical Journal},
  year={2014},
  volume={781},
  pages={29}
}
The nearby Sun-like star HD 19467 shows a subtle radial velocity (RV) acceleration of –1.37 ± 0.09 m s^(–1) yr^(–1) over a 16.9 yr time baseline (an RV trend), hinting at the existence of a distant orbiting companion. We have obtained high-contrast images of the star using NIRC2 at Keck Observatory and report the direct detection of the body that causes the acceleration. The companion, HD 19467 B, is ΔK_s = 12.57 ± 0.09 mag fainter than its parent star (contrast ratio of 9.4 × 10^(–6)), has… Expand
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References

SHOWING 1-10 OF 42 REFERENCES
THE TRENDS HIGH-CONTRAST IMAGING SURVEY. III. A FAINT WHITE DWARF COMPANION ORBITING HD 114174
  • 22
  • PDF
THE TRENDS HIGH-CONTRAST IMAGING SURVEY. I. THREE BENCHMARK M DWARFS ORBITING SOLAR-TYPE STARS
  • 51
  • PDF
THE TRENDS HIGH-CONTRAST IMAGING SURVEY. II. DIRECT DETECTION OF THE HD 8375 TERTIARY
  • 21
  • PDF
Hokupa'a-gemini discovery of two ultracool companions to the young star hd 130948
  • 97
  • PDF
THE DYNAMICAL MASS AND THREE-DIMENSIONAL ORBIT OF HR7672B: A BENCHMARK BROWN DWARF WITH HIGH ECCENTRICITY
  • 58
  • PDF
MEASURING DISTANCE AND PROPERTIES OF THE MILKY WAY'S CENTRAL SUPERMASSIVE BLACK HOLE WITH STELLAR ORBITS
  • 1,018
  • Highly Influential
  • PDF
Near-Infrared Multi-Band Photometry of the Substellar Companion GJ 758 B
  • 52
  • PDF
Images of a fourth planet orbiting HR 8799
  • 612
  • Highly Influential
  • PDF
...
1
2
3
4
5
...