Space interferometry mission (SIM): overview and current status

Marr, James C.

doi:10.1117/12.460706

Cited by 35 publications

(16 citation statements)

References 4 publications

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“…A combination of SB8 with visual-binary and other catalogues has led to the creation of the database on high-multiplicity stars (Tokovinin 1997). Spectroscopic binaries with detectable motion received special processing during Hipparcos data reduction (ESA 1997), and this is anticipated to be even more important for the next generation of astrometric satellites such as Gaia (Pourbaix & Jancart 2003) or SIM (Marr 2003). A catalogue also enables various statistical studies to be made.…”

Section: Introductionmentioning

confidence: 99%

S$\mathsf{_{B^9}}$: The ninth catalogue of spectroscopic binary orbits

Pourbaix

Tokovinin

Batten

et al. 2004

A&A

619

597

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Abstract. The Ninth Catalogue of Spectroscopic Binary Orbits (http://sb9.astro.ulb.ac.be) continues the series of compilations of spectroscopic orbits carried out over the past 35 years by Batten and collaborators. As of 2004 May 1st, the new Catalogue holds orbits for 2386 systems. Some essential differences between this catalogue and its predecessors are outlined and three straightforward applications are presented: (1) completeness assessment: period distribution of SB1s and SB2s; (2) shortest periods across the H-R diagram; (3) period-eccentricity relation.

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Section: Introductionmentioning

confidence: 99%

S$\mathsf{_{B^9}}$: The ninth catalogue of spectroscopic binary orbits

Pourbaix

Tokovinin

Batten

et al. 2004

A&A

619

597

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“…This is accomplished with an initial survey of the truss, which, for STB3, we assume can generate 500 micrometer-class estimates of the initial fiducial locations (SIM will actually have a 3 micrometer class absolute metrology system to obtain these measurements every time a new tile observation is started [4], but this level of precision is only needed for picometer class regularization of the truss solutions.) Monte-Carlo simulations of the truss solution for STB3 using this assumption about the initial truss knowledge, but assuming noiseless gauge measurements, yield a 0.1-nanometer average estimate error for the science baseline length estimate (σ =1.5 nm).…”

Section: Simulationsmentioning

confidence: 99%

Metrology system for Space Interferometry Mission's system testbed 3

Alvarez-Salazar

Azizi

Gürsel

et al. 2004

New Frontiers in Stellar Interferometry

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The Space Interferometry mission's nano-meter class System Testbed has implemented an external metrology system to monitor changes in the length & orientation of the science interferometer baseline vector, which cannot be monitored directly. The output of the system is used in real time fringe tracking of dim stars. This paper describes the external metrology system, its mathematical representation, limitations, and method for estimating the length & orientation of the science baseline vector. Simulations and current system performance are presented and discussed.

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“…Not surprisingly, such a requirement presents many challenges to the designers of SIM. There are several other papers 1,2,3 in the same conference that describe SIM in some detail, so only a very brief overview will be given here. This paper will focus on the thermal control design challenges.…”

Section: Introductionmentioning

confidence: 98%

Space Interferometry Mission thermal design

et al. 2003

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The Space Interferometry Mission (SIM) has some very tight stability requirements that drive the thermal control approach well beyond the traditional spacecraft thermal control regime. The precision support structure will be constructed of composite materials with a quite low coefficient of thermal expansion (CTE) on the order of 10 -7 /K. Even then, the temperature variations of the structure cannot exceed about 0.2°C. For the main optical elements, which will be fabricated of ultra-low expansion (ULE, 10 -8 /K CTE) glass, the temperature stability must be such that the temperature gradient through the glass cannot vary by more than a couple of millikelvin through the 5 cm thickness over a one hour period. The laser metrology system, which measures motions on the order of a few tens of picometers (10 -12 m), contains some sensitive optical elements whose temperature variations cannot exceed a few tens of microkelvin (10 -6 K). This paper will describe how the SIM thermal control designers have addressed some of these very challenging requirements.

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Space interferometry mission (SIM): overview and current status

Cited by 35 publications

References 4 publications

S$\mathsf{_{B^9}}$: The ninth catalogue of spectroscopic binary orbits

S$\mathsf{_{B^9}}$: The ninth catalogue of spectroscopic binary orbits

Metrology system for Space Interferometry Mission's system testbed 3

Space Interferometry Mission thermal design

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