Dr. Angelle Tanner Profile

Dr. Angelle Tanner

Associate Professor at Mississippi State Univ

SPIE Involvement:

Author

Publications (5)

Proceedings Article | 26 September 2013 Paper

Precision near-infrared radial velocity instrumentation II: noncircular core fiber scrambler

Peter Plavchan, M. Bottom, P. Gao, J. Wallace, B. Mennesson, D. Ciardi, S. Crawford, S. Lin, C. Beichman, C. Brinkworth, J. Johnson, C. Davison, R. White, G. Anglada-Escude, K. von Braun, G. Vasisht, L. Prato, S. Kane, A. Tanner, B. Walp, S. Mills

Proceedings Volume 8864, 88640G (2013) https://doi.org/10.1117/12.2023696

KEYWORDS: Mirrors, Spectrographs, Calibration, Cameras, Telescopes, Stars, Visible radiation, Velocity measurements, Planets, K band

Read Abstract +

We have built and commissioned a prototype agitated non-circular core ber scrambler for precision spectroscopic radial velocity measurements in the near-infrared H band. We have collected the rst on-sky performance and modal noise tests of these novel bers in the near-infrared at H and K bands using the CSHELL spectrograph at the NASA InfraRed Telescope Facility (IRTF). We discuss the design behind our novel reverse injection of a red laser for co-alignment of star-light with the ber tip via a corneWe have built and commissioned a prototype agitated non-circular core fiber scrambler for precision spectroscopic radial velocity measurements in the near-infrared H band. We have collected the first on-sky performance and modal noise tests of these novel fibers in the near-infrared at H and K bands using the CSHELL spectrograph at the NASA InfraRed Telescope Facility (IRTF). We discuss the design behind our novel reverse injection of a red laser for co-alignment of star-light with the fiber tip via a corner cube and visible camera. We summarize the practical details involved in the construction of the fiber scrambler, and the mechanical agitation of the fiber at the telescope. We present radial velocity measurements of a bright standard star taken with and without the fiber scrambler to quantify the relative improvement in the obtainable blaze function stability, the line spread function stability, and the resulting radial velocity precision. We assess the feasibility of applying this illumination stabilization technique to the next generation of near-infrared spectrographs such as iSHELL on IRTF and an upgraded NIRSPEC at Keck. Our results may also be applied in the visible for smaller core diameter fibers where Fiber modal noise is a significant factor, such as behind an adaptive optics system or on a small < 1 meter class telescope such as is being pursued by the MINERVA and LCOGT collaborations.r cube and visible camera. We summarize the practical details involved in the construction of the ber scrambler, and the mechanical agitation of the ber at the telescope. We present radial velocity measurements of a bright standard star taken with and without the ber scrambler to quantify the relative improvement in the obtainable blaze function stability, the line spread function stability, and the resulting radial velocity precision. We assess the feasibility of applying this illumination stabilization technique to the next generation of near-infrared spectrographs such as iSHELL on IRTF and an upgraded NIRSPEC at Keck. Our results may also be applied in the visible for smaller core diameter bers where ber modal noise is a signi cant factor, such as behind an adaptive optics system or on a small < 1 meter class telescope such as is being pursued by the MINERVA and LCOGT collaborations.

Proceedings Article | 26 September 2013 Paper

Precision near-infrared radial velocity instrumentation I: absorption gas cells

Peter Plavchan, G. Anglada-Escude, R. White, P. Gao, C. Davison, S. Mills, C. Beichman, C. Brinkworth, J. Johnson, M. Bottom, D. Ciardi, K. Wallace, B. Mennesson, K. von Braun, G. Vasisht, L. Prato, S. Kane, A. Tanner, B. Walp, S. Crawford, S. Lin

Proceedings Volume 8864, 88641J (2013) https://doi.org/10.1117/12.2023690

KEYWORDS: Data modeling, Methane, Calibration, Absorption, Spectrographs, Stars, Planets, Exoplanets, Velocity measurements, Satellites

Read Abstract +

Proceedings Article | 15 September 2011 Paper

The exoplanet microlensing survey by the proposed WFIRST Observatory

Richard Barry, Jeffery Kruk, Jay Anderson, Jean-Philippe Beaulieu, David Bennett, Joseph Catanzarite, Ed Cheng, Scott Gaudi, Neil Gehrels, Stephen Kane, Jonathan Lunine, Takahiro Sumi, Angelle Tanner, Wesley Traub

Proceedings Volume 8151, 81510L (2011) https://doi.org/10.1117/12.898574

KEYWORDS: Planets, Stars, Exoplanets, Observatories, Signal detection, Space telescopes, Planetary systems, Telescopes, Astronomy, Infrared telescopes

Read Abstract +

Proceedings Article | 29 June 2006 Paper

Detection and mass characterization of terrestrial planets in the habitable zone with SIM PlanetQuest

A. Tanner, J. Catanzarite, M. Shao

Proceedings Volume 6268, 626847 (2006) https://doi.org/10.1117/12.671877

KEYWORDS: Planets, Stars, Planetary systems, Statistical analysis, Monte Carlo methods, Target detection, Exoplanets, Signal detection, Jupiter, Michelson interferometers

Read Abstract +

Proceedings Article | 29 June 2000 Open Access

Is the galactic center source, IRS 21, as large as it appears?

Angelle Tanner, Andrea Ghez, Mark Morris, Eric Becklin, A. Cotera, Michael Ressler

Proceedings Volume 4005, (2000) https://doi.org/10.1117/12.390142

KEYWORDS: Infrared imaging, Mid-IR, Stars, Polarization, Surface conduction electron emitter displays, Scattering, Point spread functions, Light scattering, Light, Infrared telescopes

Read Abstract +

DOWNLOAD PAPER

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years