Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Jurgenson, Colby A."'
Autor:
Leung, Matthew C. H., Jurgenson, Colby A., Szentgyorgyi, Andrew, McLeod, Brian, Onyuksel, Cem, Zajac, Joseph, Charbonneau, David, Podgorski, William, Unger, Abigail, Mueller, Mark, Smith, Matthew, Baldwin, Daniel, Villar, V. Ashley
Publikováno v:
Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130964M (18 July 2024)
The Hartmann test is a method used to measure the wavefront error in a focal optical system, wherein a mask with a pattern of small holes is placed at the system's aperture stop. By taking an image at a defocused plane, the differences between the id
Externí odkaz:
http://arxiv.org/abs/2407.20344
Publikováno v:
Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121883W (29 August 2022)
Grating-based spectrographs suffer from smile and keystone distortion, which are problematic for hyperspectral data applications. Due to this, spectral lines will appear curved and roughly parabola-shaped. Smile and keystone need to be measured and c
Externí odkaz:
http://arxiv.org/abs/2208.10610
Autor:
Wang, Ji, Jurgenson, Colby
Understanding the atmospheres of exoplanets is a milestone to decipher their formation history and potential habitability. High-contrast imaging and spectroscopy of exoplanets is the major pathway towards the goal. Directly imaging of an exoplanet re
Externí odkaz:
http://arxiv.org/abs/2007.15529
Autor:
Blackman, Ryan T., Fischer, Debra A., Jurgenson, Colby A., Sawyer, David, McCracken, Tyler M., Szymkowiak, Andrew E., Petersburg, Ryan R., Ong, J. M. Joel, Brewer, John M., Zhao, Lily L., Leet, Christopher, Buchhave, Lars A., Tronsgaard, René, Llama, Joe, Sawyer, Travis, Davis, Allen B., Cabot, Samuel H. C., Shao, Michael, Trahan, Russell, Nemati, Bijan, Genoni, Matteo, Pariani, Giorgio, Riva, Marco, Probst, Rafael A., Holzwarth, Ronald, Steinmetz, Tilo, Fournier, Paul, Pawluczyk, Rafal
The EXtreme PREcision Spectrograph (EXPRES) is a new Doppler spectrograph designed to reach a radial velocity measurement precision sufficient to detect Earth-like exoplanets orbiting nearby, bright stars. We report on extensive laboratory testing an
Externí odkaz:
http://arxiv.org/abs/2003.08852
Autor:
Petersburg, Ryan R., Ong, J. M. Joel, Zhao, Lily L., Blackman, Ryan T., Brewer, John M., Buchhave, Lars A., Cabot, Samuel H. C., Davis, Allen B., Jurgenson, Colby A., Leet, Christopher, McCracken, Tyler M., Sawyer, David, Sharov, Mikhail, Tronsgaard, René, Szymkowiak, Andrew E., Fischer, Debra A.
The EXtreme PREcision Spectrograph (EXPRES) is an environmentally stabilized, fiber-fed, $R=137,500$, optical spectrograph. It was recently commissioned at the 4.3-m Lowell Discovery Telescope (LDT) near Flagstaff, Arizona. The spectrograph was desig
Externí odkaz:
http://arxiv.org/abs/2003.08851
Autor:
Jovanovic, Nemanja, Beichman, Charles, Blake, Cullen, Bottom, Michael, Chilcote, Jeffrey, Coker, Carl, Crass, Jonathan, Crepp, Justin R., Cvetojevic, Nick, Daal, Miguel, Dagenais, Mario, Davis, Kristina, Dekany, Richard, Figer, Don, Fitzgerald, Michael P., Gatkine, Pradip, Guyon, Olivier, Halverson, Sam, Harris, Robert J., Hinz, Philip M., Hover, David, Howard, Andrew W., Jensen-Clem, Rebecca, Jewell, Jeffrey, Jurgenson, Colby, Leifer, Stephanie, Lozi, Julien, Martin, Stefan, Martinache, Frantz, Mawet, Dimitri, Mazin, Ben, Mennesson, Bertrand, Moreira, Renan, Pezzato, Jacklyn, Plavchan, Peter, Porter, Michael D., Ruane, Garreth, Redding, David, Sahoo, Ananya, Schwab, Christian, Serabyn, Eugene, Skidmore, Warren, Skemer, Andrew, Van Buren, David, Vasisht, Gautam, Veilleux, Sylvain, Vievard, Sebastien, Wang, Jason, Wang, Ji
The fields of Astronomy and Astrophysics are technology limited, where the advent and application of new technologies to astronomy usher in a flood of discoveries altering our understanding of the Universe (e.g., recent cases include LIGO and the GRA
Externí odkaz:
http://arxiv.org/abs/1907.07742
Autor:
Petersburg, Ryan R., McCracken, Tyler M., Eggerman, Dominic, Jurgenson, Colby A., Sawyer, David, Szymkowiak, Andrew E., Fischer, Debra A.
Optical fiber modal noise is a limiting factor for high precision spectroscopy signal-to-noise in the near-infrared and visible. Unabated, especially when using highly coherent light sources for wavelength calibration, modal noise can induce radial v
Externí odkaz:
http://arxiv.org/abs/1802.01642
Atmospheric effects on stellar radial velocity measurements for exoplanet discovery and characterization have not yet been fully investigated for extreme precision levels. We carry out calculations to determine the wavelength dependence of barycentri
Externí odkaz:
http://arxiv.org/abs/1703.00012
Autor:
Fischer, Debra, Anglada-Escude, Guillem, Arriagada, Pamela, Baluev, Roman V., Bean, Jacob L., Bouchy, Francois, Buchhave, Lars A., Carroll, Thorsten, Chakraborty, Abhijit, Crepp, Justin R., Dawson, Rebekah I., Diddams, Scott A., Dumusque, Xavier, Eastman, Jason D., Endl, Michael, Figueira, Pedro, Ford, Eric B., Foreman-Mackey, Daniel, Fournier, Paul, Furesz, Gabor, Gaudi, B. Scott, Gregory, Philip C., Grundahl, Frank, Hatzes, Artie P., Hebrard, Guillaume, Herrero, Enrique, Hogg, David W., Howard, Andrew W., Johnson, John A., Jorden, Paul, Jurgenson, Colby A., Latham, David W., Laughlin, Greg, Loredo, Thomas J., Lovis, Christophe, Mahadevan, Suvrath, McCracken, Tyler M., Pepe, Francesco, Perez, Mario, Phillips, David F., Plavchan, Peter P., Prato, Lisa, Quirrenbach, Andreas, Reiners, Ansgar, Robertson, Paul, Santos, Nuno C., Sawyer, David, Segransan, Damien, Sozzetti, Alessandro, Steinmetz, Tilo, Szentgyorgyi, Andrew, Udry, Stephane, Valenti, Jeff A., Wang, Sharon X., Wittenmyer, Robert A., Wright, Jason T.
The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path challenges for reaching 10 cm/s measurement precision. The presentations and discussion of key issue
Externí odkaz:
http://arxiv.org/abs/1602.07939
Autor:
Jurgenson, Colby, Fischer, Debra, McCracken, Tyler, Sawyer, David, Szymkowiak, Andrew, Giguere, Matt, Santoro, Fernando, Muller, Gary
In February of 2014 the Yale Exoplanet Laboratory was commissioned to design, build, and deliver a high resolution (R = 60,000) spectrograph for the 1.65-meter telescope at the Moletai Astronomical Observatory. The observatory is operated by the Inst
Externí odkaz:
http://arxiv.org/abs/1601.06024