Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Spronck, Julien"'
Autor:
Thompson, Samantha J., Queloz, Didier, Baraffe, Isabelle, Brake, Martyn, Dolgopolov, Andrey, Fisher, Martin, Fleury, Michel, Geelhoed, Joost, Hall, Richard, Hernandez, Jonay I. Gonzalez, ter Horst, Rik, Kragt, Jan, Navarro, Ramon, Naylor, Tim, Pepe, Francesco, Piskunov, Nikolai, Rebolo, Rafael, Sander, Louis, Segransan, Damien, Seneta, Eugene, Sing, David, Snellen, Ignas, Snik, Frans, Spronck, Julien, Stempels, Eric, Sun, Xiaowei, Tschudi, Samuel Santana, Young, John
Publikováno v:
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99086F (August 9, 2016)
We present a description of a new instrument development, HARPS3, planned to be installed on an upgraded and roboticized Isaac Newton Telescope by end-2018. HARPS3 will be a high resolution (R = 115,000) echelle spectrograph with a wavelength range f
Externí odkaz:
http://arxiv.org/abs/1608.04611
Autor:
Spronck, Julien F. P., Fischer, Debra A., Kaplan, Zachary, Jurgenson, Colby, Valenti, Jeff, Moriarty, John, Szymkowiak, Andrew E.
We have designed a fiber scrambler as a prototype for the Keck HIRES spectrograph, using double scrambling to stabilize illumination of the spectrometer and a pupil slicer to increase spectral resolution to R = 70,000 with minimal slit losses. We fin
Externí odkaz:
http://arxiv.org/abs/1501.00328
The Lick planet search program began in 1987 when the first spectrum of $\tau$ Ceti was taken with an iodine cell and the Hamilton Spectrograph. Upgrades to the instrument improved the Doppler precision from about 10 m/s in 1992 to about 3 m/s in 199
Externí odkaz:
http://arxiv.org/abs/1310.7315
Autor:
Tokovinin, Andrei, Fischer, Debra A., Bonati, Marco, Giguere, Matthew J., Moore, Peter, Schwab, Christian, Spronck, Julien F. P., Szymkowiak, Andrew
The CHIRON optical high-resolution echelle spectrometer was commissioned at the 1.5m telescope at CTIO in 2011. The instrument was designed for high throughput and stability, with the goal of monitoring radial velocities of bright stars with high pre
Externí odkaz:
http://arxiv.org/abs/1309.3971
Autor:
Spronck, Julien F. P., Fischer, Debra A., Kaplan, Zachary A., Schwab, Christian, Szymkowiak, Andrew
In this paper, we report all results obtained with a fiber scrambler on the Hamilton spectrograph at Lick Observatory. We demonstrate an improvement in the stability of the instrumental profile using this fiber scrambler. Additionally, we present dat
Externí odkaz:
http://arxiv.org/abs/1303.5792
Autor:
Fischer, Debra, Schwamb, Megan, Schawinski, Kevin, Lintott, Chris, Brewer, John, Giguere, Matt, Lynn, Stuart, Parrish, Michael, Sartori, Thibault, Simpson, Robert, Smith, Arfon, Spronck, Julien, Batalha, Natalie, Rowe, Jason, Jenkins, Jon, Bryson, Steve, Prsa, Andrej, Tenenbaum, Peter, Crepp, Justin, Morton, Tim, Howard, Andrew, Beleu, Michele, Kaplan, Zachary, vanNispen, Nick, Sharzer, Charlie, DeFouw, Justin, Hajduk, Agnieszka, Neal, Joe, Nemec, Adam, Schuepbach, Nadine, Zimmermann, Valerij
Planet Hunters is a new citizen science project, designed to engage the public in an exoplanet search using NASA Kepler public release data. In the first month after launch, users identified two new planet candidates which survived our checks for fal
Externí odkaz:
http://arxiv.org/abs/1109.4621
Autor:
Giguere, Matthew J., Fischer, Debra A., Howard, Andrew W., Johnson, John A., Henry, Gregory W., Wright, Jason T., Marcy, Geoffrey W., Isaacson, Howard T., Hou, Fengji, Spronck, Julien
We report the detection of three new exoplanets from Keck Observatory. HD 163607 is a metal-rich G5IV star with two planets. The inner planet has an observed orbital period of 75.29 $\pm$ 0.02 days, a semi-amplitude of 51.1 $\pm$ 1.4 \ms, an eccentri
Externí odkaz:
http://arxiv.org/abs/1109.2955
Autor:
Fischer, Debra A., Gaidos, Eric, Howard, Andrew, Giguere, Matthew, Johnson, John A., Marcy, Geoffrey W., Wright, Jason T., Clubb, Kelsey I., Isaacson, Howard, Apps, Kevin, Lepine, Sebastien, Mann, Andrew, Moriarty, John, Brewer, John, Spronck, Julien, Schwab, Christian, Szymkowiak, Andrew
Doppler observations from Keck Observatory have revealed a triple planet system orbiting the nearby mid-type K dwarf, HIP 57274. The inner planet, HIP 57274b, is a super-Earth with \msini\ = 11.6 \mearth (0.036 \mjup), an orbital period of 8.135 $\pm
Externí odkaz:
http://arxiv.org/abs/1109.2926
Autor:
Le Poole Rudolf, Horst Rik ter, de Mooij Ernst, Kenworthy Matthew, Navarro Ramon, Bettonvil Felix, Otten Gilles, Stuik Remko, Snellen Inas, Lesage Anna-Lea, Spronck Julien
Publikováno v:
EPJ Web of Conferences, Vol 47, p 03008 (2013)
The Multi-site All-Sky CAmeRA, MASCARA, is an instrument currently in the design phase, that is aimed to find the brightest transiting planet systems in the sky. It will consist of several stations across the globe, each monitoring the near-entire sk
Externí odkaz:
https://doaj.org/article/a5c2f997ecee47b88930c822466839af
THREE-DIMENSIONAL ELECTRIC FIELD ANALYSIS IN A MULTI-AXIAL BEAM COMBINER FOR NULLING INTERFEROMETRY.
Publikováno v:
Proceedings of SPIE; 12/9/2017, Vol. 10567, p1-5, 5p