Measurements of binary stars with coherent integration of NPOI data

Anders M. Jorgensen; H. Schmitt; R. Hindsley; J. T. Armstrong; T. A. Pauls; D. Mozurkewich; D. J. Hutter; C. Tycner

doi:10.1117/12.790290

Measurements of binary stars with coherent integration of NPOI data

Anders M. Jorgensen, H. Schmitt, R. Hindsley, J. T. Armstrong, T. A. Pauls, D. Mozurkewich, D. J. Hutter, C. Tycner

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

In this paper we use coherently integrated visibilities (see separate paper in these proceedings¹) to measure the properties of binary stars. We use only the phase of the complex visibility and not the amplitude. The reason for this is that amplitudes suffer from the calibration effect (the same for coherent and incoherent averages) and thus effectively provide lower accuracy measurements. We demonstrate that the baseline phase alone can be used to measure the separation, orientation and brightness ratio of a binary star, as a function of wavelength.

Original language	English
Title of host publication	Optical and Infrared Interferometry
DOIs	https://doi.org/10.1117/12.790290
State	Published - 2008
Event	Optical and Infrared Interferometry - Marseille, France Duration: Jun 23 2008 → Jun 27 2008

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7013
ISSN (Print)	0277-786X

Conference

Conference	Optical and Infrared Interferometry
Country/Territory	France
City	Marseille
Period	06/23/08 → 06/27/08

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10.1117/12.790290

Cite this

@inproceedings{6e5ed06ea71649b6ab1f99e092da4bb3,

title = "Measurements of binary stars with coherent integration of NPOI data",

abstract = "In this paper we use coherently integrated visibilities (see separate paper in these proceedings1) to measure the properties of binary stars. We use only the phase of the complex visibility and not the amplitude. The reason for this is that amplitudes suffer from the calibration effect (the same for coherent and incoherent averages) and thus effectively provide lower accuracy measurements. We demonstrate that the baseline phase alone can be used to measure the separation, orientation and brightness ratio of a binary star, as a function of wavelength.",

author = "Jorgensen, {Anders M.} and H. Schmitt and R. Hindsley and Armstrong, {J. T.} and Pauls, {T. A.} and D. Mozurkewich and Hutter, {D. J.} and C. Tycner",

year = "2008",

doi = "10.1117/12.790290",

language = "English",

isbn = "9780819472236",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Optical and Infrared Interferometry",

note = "null ; Conference date: 23-06-2008 Through 27-06-2008",

}

Jorgensen, AM, Schmitt, H, Hindsley, R, Armstrong, JT, Pauls, TA, Mozurkewich, D, Hutter, DJ & Tycner, C 2008, Measurements of binary stars with coherent integration of NPOI data. in Optical and Infrared Interferometry., 701342, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7013, Optical and Infrared Interferometry, Marseille, France, 06/23/08. https://doi.org/10.1117/12.790290

TY - GEN

T1 - Measurements of binary stars with coherent integration of NPOI data

AU - Jorgensen, Anders M.

AU - Schmitt, H.

AU - Hindsley, R.

AU - Armstrong, J. T.

AU - Pauls, T. A.

AU - Mozurkewich, D.

AU - Hutter, D. J.

AU - Tycner, C.

PY - 2008

Y1 - 2008

N2 - In this paper we use coherently integrated visibilities (see separate paper in these proceedings1) to measure the properties of binary stars. We use only the phase of the complex visibility and not the amplitude. The reason for this is that amplitudes suffer from the calibration effect (the same for coherent and incoherent averages) and thus effectively provide lower accuracy measurements. We demonstrate that the baseline phase alone can be used to measure the separation, orientation and brightness ratio of a binary star, as a function of wavelength.

AB - In this paper we use coherently integrated visibilities (see separate paper in these proceedings1) to measure the properties of binary stars. We use only the phase of the complex visibility and not the amplitude. The reason for this is that amplitudes suffer from the calibration effect (the same for coherent and incoherent averages) and thus effectively provide lower accuracy measurements. We demonstrate that the baseline phase alone can be used to measure the separation, orientation and brightness ratio of a binary star, as a function of wavelength.

UR - http://www.scopus.com/inward/record.url?scp=52249085166&partnerID=8YFLogxK

U2 - 10.1117/12.790290

DO - 10.1117/12.790290

M3 - Conference contribution

AN - SCOPUS:52249085166

SN - 9780819472236

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optical and Infrared Interferometry

Y2 - 23 June 2008 through 27 June 2008

ER -

Measurements of binary stars with coherent integration of NPOI data

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