Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Hennessy, John P."'
Autor:
Nell, Nicholas, France, Kevin, Kruczek, Nicholas, Fleming, Brian, Ulrich, Stefan, Behr, Patrick, Quijada, Manuel A., Del Hoyo, Javier, Hennessy, John
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 10, Issue 3, 035003 (September 2024)
The Suborbital Imaging Spectrograph for Transition region Irradiance from Nearby Exoplanet host stars (SISTINE) is a rocket-borne ultraviolet (UV) imaging spectrograph designed to probe the radiation environment of nearby stars. SISTINE operates over
Externí odkaz:
http://arxiv.org/abs/2410.02893
Autor:
Tuttle, Sarah, Matsumura, Mark, Ardila, David R., Chen, Pin, Davis, Michael, Ertley, Camden, Farr, Emily, Fleming, Brian, France, Kevin, Froning, Cynthia, Grisé, Fabien, Hamden, Erika, Hennessy, John, Hoadley, Keri, McCandliss, Stephan R., Miles, Drew M., Nikzad, Shouleh, Quijada, Manuel, Ravi, Isu, de Marcos, Luis Rodriguez, Scowen, Paul, Siegmund, Oswald, Vargas, Carlos J., Vorobiev, Dmitry, Witt, Emily M.
We present here the current state of a collection of promising ultraviolet technologies in preparation for the Habitable Worlds Observatory. Working with experts representing a significant number of groups working in the ultraviolet, we summarize som
Externí odkaz:
http://arxiv.org/abs/2408.07242
Characterization of Low Light Performance of a CMOS sensor for Ultraviolet Astronomical Applications
Autor:
Greffe, Timothee, Smith, Roger, Sherman, Myles, Harrison, Fiona, Earnshaw, Hannah, Grefenstette, Brian, Hennessy, John, Nikzad, Shouleh
CMOS detectors offer many advantages over CCDs for optical and UV astronomical applications, especially in space where high radiation tolerance is required. However, astronomical instruments are most often designed for low light-level observations de
Externí odkaz:
http://arxiv.org/abs/2112.01691
Autor:
Ramiaramanantsoa, Tahina, Bowman, Judd D., Shkolnik, Evgenya L., Loyd, R. O. Parke, Ardila, David R., Jewell, April, Barman, Travis, Basset, Christophe, Beasley, Matthew, Cheng, Samuel, Gamaunt, Johnathan, Gorjian, Varoujan, Hennessy, John, Jacobs, Daniel, Jensen, Logan, Knapp, Mary, Llama, Joe, Meadows, Victoria, Nikzad, Shouleh, Peacock, Sarah, Scowen, Paul, Swain, Mark R.
The Star-Planet Activity Research CubeSat (SPARCS) is a 6U CubeSat under development to monitor the flaring and chromospheric activity of M dwarfs at near-ultraviolet (NUV) and far-ultraviolet (FUV) wavelengths. The spacecraft hosts two UV-optimized
Externí odkaz:
http://arxiv.org/abs/2111.10322
Autor:
Gaudi, B. Scott, Seager, Sara, Mennesson, Bertrand, Kiessling, Alina, Warfield, Keith, Cahoy, Kerri, Clarke, John T., Domagal-Goldman, Shawn, Feinberg, Lee, Guyon, Olivier, Kasdin, Jeremy, Mawet, Dimitri, Plavchan, Peter, Robinson, Tyler, Rogers, Leslie, Scowen, Paul, Somerville, Rachel, Stapelfeldt, Karl, Stark, Christopher, Stern, Daniel, Turnbull, Margaret, Amini, Rashied, Kuan, Gary, Martin, Stefan, Morgan, Rhonda, Redding, David, Stahl, H. Philip, Webb, Ryan, Alvarez-Salazar, Oscar, Arnold, William L., Arya, Manan, Balasubramanian, Bala, Baysinger, Mike, Bell, Ray, Below, Chris, Benson, Jonathan, Blais, Lindsey, Booth, Jeff, Bourgeois, Robert, Bradford, Case, Brewer, Alden, Brooks, Thomas, Cady, Eric, Caldwell, Mary, Calvet, Rob, Carr, Steven, Chan, Derek, Cormarkovic, Velibor, Coste, Keith, Cox, Charlie, Danner, Rolf, Davis, Jacqueline, Dewell, Larry, Dorsett, Lisa, Dunn, Daniel, East, Matthew, Effinger, Michael, Eng, Ron, Freebury, Greg, Garcia, Jay, Gaskin, Jonathan, Greene, Suzan, Hennessy, John, Hilgemann, Evan, Hood, Brad, Holota, Wolfgang, Howe, Scott, Huang, Pei, Hull, Tony, Hunt, Ron, Hurd, Kevin, Johnson, Sandra, Kissil, Andrew, Knight, Brent, Kolenz, Daniel, Kraus, Oliver, Krist, John, Li, Mary, Lisman, Doug, Mandic, Milan, Mann, John, Marchen, Luis, Marrese-Reading, Colleen, McCready, Jonathan, McGown, Jim, Missun, Jessica, Miyaguchi, Andrew, Moore, Bradley, Nemati, Bijan, Nikzad, Shouleh, Nissen, Joel, Novicki, Megan, Perrine, Todd, Pineda, Claudia, Polanco, Otto, Putnam, Dustin, Qureshi, Atif, Richards, Michael, Riggs, A. J. Eldorado, Rodgers, Michael, Rud, Mike, Saini, Navtej, Scalisi, Dan, Scharf, Dan, Schulz, Kevin, Serabyn, Gene, Sigrist, Norbert, Sikkia, Glory, Singleton, Andrew, Shaklan, Stuart, Smith, Scott, Southerd, Bart, Stahl, Mark, Steeves, John, Sturges, Brian, Sullivan, Chris, Tang, Hao, Taras, Neil, Tesch, Jonathan, Therrell, Melissa, Tseng, Howard, Valente, Marty, Van Buren, David, Villalvazo, Juan, Warwick, Steve, Webb, David, Westerhoff, Thomas, Wofford, Rush, Wu, Gordon, Woo, Jahning, Wood, Milana, Ziemer, John, Arney, Giada, Anderson, Jay, Maíz-Apellániz, Jesús, Bartlett, James, Belikov, Ruslan, Bendek, Eduardo, Cenko, Brad, Douglas, Ewan, Dulz, Shannon, Evans, Chris, Faramaz, Virginie, Feng, Y. Katherina, Ferguson, Harry, Follette, Kate, Ford, Saavik, García, Miriam, Geha, Marla, Gelino, Dawn, Götberg, Ylva, Hildebrandt, Sergi, Hu, Renyu, Jahnke, Knud, Kennedy, Grant, Kreidberg, Laura, Isella, Andrea, Lopez, Eric, Marchis, Franck, Macri, Lucas, Marley, Mark, Matzko, William, Mazoyer, Johan, McCandliss, Stephan, Meshkat, Tiffany, Mordasini, Christoph, Morris, Patrick, Nielsen, Eric, Newman, Patrick, Petigura, Erik, Postman, Marc, Reines, Amy, Roberge, Aki, Roederer, Ian, Ruane, Garreth, Schwieterman, Edouard, Sirbu, Dan, Spalding, Christopher, Teplitz, Harry, Tumlinson, Jason, Turner, Neal, Werk, Jessica, Wofford, Aida, Wyatt, Mark, Young, Amber, Zellem, Rob
The Habitable Exoplanet Observatory, or HabEx, has been designed to be the Great Observatory of the 2030s. For the first time in human history, technologies have matured sufficiently to enable an affordable space-based telescope mission capable of di
Externí odkaz:
http://arxiv.org/abs/2001.06683
Autor:
Fleming, Brian, Quijada, Manuel, Hennessy, John, Egan, Arika, Del Hoyo, Javier, Hicks, Brian A., Wiley, James, Kruczek, Nicholas, Erickson, Nicholas, France, Kevin
Publikováno v:
Brian Fleming, Manuel Quijada, et al., "Advanced environmentally resistant lithium fluoride mirror coatings for the next generation of broadband space observatories," Appl. Opt. 56, 9941-9950 (2017)
Recent advances in the physical vapor deposition (PVD) of protective fluoride films have raised the far-ultraviolet (FUV: 912-1600 {\AA}) reflectivity of aluminum-based mirrors closer to the theoretical limit. The greatest gains, at more than 20%, ha
Externí odkaz:
http://arxiv.org/abs/1801.03102
Autor:
Hennessy, John, Moore, Christopher S., Balasubramanian, Kunjithapatham, Jewell, April D., France, Kevin, Nikzad, Shouleh
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 35, 041512 (2017)
We report on the development and application of an atomic layer etching (ALE) procedure based on alternating exposures of trimethylaluminum and anhydrous hydrogen fluoride (HF) implemented to controllably etch aluminum oxide. Our ALE process utilizes
Externí odkaz:
http://arxiv.org/abs/1703.05469
Autor:
Hamden, Erika T., Jewell, April D., Shapiro, Charles A., Cheng, Samuel R., Goodsall, Tim M., Hennessy, John, Hoenk, Michael, Jones, Todd, Gordon, Sam, Ong, Hwei Ru, Schiminovich, David, Martin, D. Christopher, Nikzad, Shouleh
Publikováno v:
J. Astron. Telesc. Instrum. Syst. 2(3), 036003 (Sep 12, 2016)
We report on multilayer high efficiency antireflection coating (ARC) design and development for use at UV wavelengths on CCDs and other Si-based detectors. We have previously demonstrated a set of single-layer coatings, which achieve >50% quantum eff
Externí odkaz:
http://arxiv.org/abs/1701.02733
Autor:
Nikzad, Shouleh, Jewell, April D., Hoenk, Michael E., Jones, Todd, Hennessy, John, Goodsall, Tim, Carver, Alexander, Shapiro, Charles, Cheng, Samuel R., Hamden, Erika, Kyne, Gillian, Martin, D. Christopher, Schiminovich, David, Scowen, Paul, France, Kevin, McCandliss, Stephan, Lupu, Roxana E.
A number of exciting concepts are under development for Flagship, Probe class, Explorer class, and Suborbital class NASA missions in the ultraviolet/optical spectral ranges. These missions will depend on high performance silicon detector arrays being
Externí odkaz:
http://arxiv.org/abs/1612.04734
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