THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. II. UPDATED BINARY STAR ORBITS AND A LONG PERIOD ECLIPSING BINARY

By M. Muterspaugh, W. Hartkopf, B. Lane, J. O’Connell, M. Williamson, S. R. Kulkarni, Maciej Konacki, B. F. Burke, M. Colavita, M. Shao and 1 more. 2010

239 citations recorded by the source corpus.

Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems have been combined with lower precision single-aperture measurements covering a much longer timespan (from eyepiece measurements, speckle interferometry, and adaptive optics) to determine improved visual orbits for 20 binary stars. In some cases, radial velocity observations exist to constrain the full three-dimensional orbit and determine component masses. The visual orbit of one of these binaries—α Com (HD 114378)—shows that the system is likely to have eclipses, despite its very long period of 26 years. The next eclipse is predicted to be within a week of 2015 January 24.

Subfields: Astronomy and Astrophysics, Computational Mechanics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/d215a7b05d24b824a06e5db555647c53a06253d4

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. A. Tokovinin
2. B. Mason
3. W. Hartkopf
4. Elliott Horch
5. R. Mendez
6. R. Zavala
7. J. Benson
8. C. Tycner

In Computational Mechanics

1. A. Tokovinin
2. W. Hartkopf
3. B. Mason
4. R. Zavala
5. J. Benson
6. C. Tycner

In Instrumentation

1. A. Tokovinin
2. B. Mason
3. W. Hartkopf
4. Elliott Horch
5. R. Mendez
6. R. Zavala
7. J. Benson
8. C. Tycner

Citations in the corpus

• Speckle Interferometry at SOAR in 2016 and 2017 (2014, background): “Four binaries (WDS J04136+0743, J07277+2127, J09285+0903, and J22409+1433) have very accurate orbits based on long-baseline interferometry (Muterspaugh et al. 2010a,b).”
• SPECKLE INTERFEROMETRY AT SOAR IN 2010 AND 2011: MEASURES, ORBITS, AND RECTILINEAR FITS (2012, background): “The orbit of Muterspaugh et al. (2010) appears very reliable, however.”
• PREDICTING THE α COMAE BERENICES TIME OF ECLIPSE: HOW 3 AMBIGUOUS MEASUREMENTS OUT OF 609 CAUSED A 26 YEAR BINARY’S ECLIPSE TO BE MISSED (2015, unknown): “As a result of these developments, the original data set used in Muterspaugh et al. ( 2010 ) was re fi t with the uncertainties for position angle arti fi cially increased to absurdly large values ( to 10,000 ° ) , essentially removing them from the fi t, and a model was evaluated using just the…”
• SURVEYING THE BRIGHT STARS BY OPTICAL INTERFEROMETRY. I. A SEARCH FOR MULTIPLICITY AMONG STARS OF SPECTRAL TYPES F-K (2016, methodology): “This grid search was performed in 0.5 mas steps over a range of 50 mas in R.A. and decl., centered on the positions predicted by the Muterspaugh et al. (2010b) orbit.”