Continued Kinematic and Photometric Investigations of Hierarchical Solar-type Multiple Star Systems

Journal Article · Wed Mar 01 00:00:00 EST 2017 · Astronomical Journal (Online)

DOI:https://doi.org/10.3847/1538-3881/153/3/100· OSTI ID:22663867

Roberts, Jr., Lewis C.; Marinan, Anne D. ^[1]; Tokovinin, Andrei ^[2]

---

1. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena CA 91109 (United States)
2. Cerro Tololo Inter-American Observatory, Casilla 603, La Serena (Chile)

We observed 15 of the solar-type binaries within 67 pc of the Sun previously observed by the Robo-AO system in the visible, with the PHARO near-infrared camera and the PALM-3000 adaptive optics system on the 5 m Hale telescope. The physical status of the binaries is confirmed through common proper motion and detection of orbital motion. In the process, we detected a new candidate companion to HIP 95309. We also resolved the primary of HIP 110626 into a close binary, making that system a triple. These detections increase the completeness of the multiplicity survey of the solar-type stars within 67 pc of the Sun. Combining our observations of HIP 103455 with archival astrometric measurements and RV measurements, we are able to compute the first orbit of HIP 103455, showing that the binary has a 68 year period. We place the components on a color–magnitude diagram and discuss each multiple system individually.

• OSTI ID: 22663867
• Journal Information: Astronomical Journal (Online), Vol. 153, Issue 3; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BINARY STARS
CAMERAS
COLOR
DETECTION
DIAGRAMS
MAIN SEQUENCE STARS
MULTIPLICITY
OPTICS
ORBITS
PROPER MOTION
TELESCOPES