Zobrazeno 1 - 10
of 13 811
pro vyhledávání: '"Alex, S."'
Autor:
Brinkman, Casey L., Weiss, Lauren M., Huber, Daniel, Lee, Rena A., Kolecki, Jared, Tenn, Gwyneth, Zhang, Jingwen, Narayanan, Suchitra, Polanski, Alex S., Dai, Fei, Bean, Jacob L., Beard, Corey, Brady, Madison, Brodheim, Max, Brown, Matt, Deich, William, Edelstein, Jerry, Fulton, Benjamin J., Giacalone, Steven, Gibson, Steven R., Gilbert, Gregory J., Halverson, Samuel, Handley, Luke, Hill, Grant M., Holcomb, Rae, Holden, Bradford, Householder, Aaron, Howard, Andrew W., Isaacson, Howard, Kaye, Stephen, Laher, Russ R., Lanclos, Kyle, Ong, J. M. Joel, Payne, Joel, Petigura, Eric A., Pidhorodetska, Daria, Poppett, Claire, Roy, Arpita, Rubenzahl, Ryan, Saunders, Nicholas, Schwab, Christian, Seifahrt, Andreas, Shaum, Abby P., Sirk, Martin M., Smith, Chris, Smith, Roger, Stefánsson, Guðmundur, Stürmer, Julian, Thorne, Jim, Turtelboom, Emma V., Tyler, Dakotah, Valliant, John, Van Zandt, Judah, Walawender, Josh, Yee, Samuel W., Yeh, Sherry, Zink, Jon
Hundreds of exoplanets between 1-1.8 times the size of the Earth have been discovered on close in orbits. However, these planets show such a diversity in densities that some appear to be made entirely of iron, while others appear to host gaseous enve
Externí odkaz:
http://arxiv.org/abs/2410.00213
Gaia Data Release 3 (DR3) has provided the largest and most astrometrically precise catalogue of nearby stars to date, allowing for a more complete membership census of nearby, young stellar moving groups. These loose associations of young (age $<$10
Externí odkaz:
http://arxiv.org/abs/2409.17521
Autor:
Brinkman, Casey L., Polanski, Alex S., Huber, Daniel, Weiss, Lauren M., Valencia, Diana, Plotnykov, Mykhaylo
Planets and the stars they orbit are born from the same cloud of gas and dust, and the primordial compositions of rocky exoplanets have been assumed to have iron and refractory abundance ratios consistent with their host star. To test this assumption
Externí odkaz:
http://arxiv.org/abs/2409.08361
Autor:
Teng, Huan-Yu, Dai, Fei, Howard, Andrew W., Isaacson, Howard, Rubenzahl, Ryan A., Angelo, Isabel, Polanski, Alex S.
We report the observation of the transiting planet TOI-942c, a Neptunian planet orbiting a young K-type star approximately 50 Myr years old. Using Keck/HIRES, we observed a partial transit of the planet and detected an associated radial velocity anom
Externí odkaz:
http://arxiv.org/abs/2408.07788
Autor:
Barty, Christopher P. J., Algots, J. Martin, Amador, Alexander J., Barty, James C. R., Betts, Shawn M., Casteñada, Marcelo A., Chu, Matthew M., Daley, Michael E., Lopez, Ricardo A. De Luna, Diviak, Derek A., Effarah, Haytham H., Feliciano, Roberto, Garcia, Adan, Grabiel, Keith J., Griffin, Alex S., Hartemann, Frederic V., Heid, Leslie, Hwang, Yoonwoo, Imeshev, Gennady, Jentschel, Michael, Johnson, Christopher A., Kinosian, Kenneth W., Lagzda, Agnese, Lochrie, Russell J., May, Michael W., Molina, Everardo, Nagel, Christopher L., Nagel, Henry J., Peirce, Kyle R., Peirce, Zachary R., Quiñonez, Mauricio E., Raksi, Ferenc, Ranganath, Kelanu, Reutershan, Trevor, Salazar, Jimmie, Schneider, Mitchell E., Seggebruch, Michael W. L., Yang, Joy Y., Yeung, Nathan H., Zapata, Collette B., Zapata, Luis E., Zepeda, Eric J., Zhang, Jingyuan
The design and optimization of laser-Compton x-ray systems based on compact distributed charge accelerator structures can enable micron-scale imaging of disease and the concomitant production of beams of Very High Energy Electrons (VHEEs) capable of
Externí odkaz:
http://arxiv.org/abs/2408.04082
Autor:
Amiri, Mandana, Chakraborty, Arnab, Foreman, Simon, Halpern, Mark, Hill, Alex S, Hinshaw, Gary, Landecker, T. L., MacEachern, Joshua, Masui, Kiyoshi W., Mena-Parra, Juan, Milutinovic, Nikola, Newburgh, Laura, Ordog, Anna, Pen, Ue-Li, Pinsonneault-Marotte, Tristan, Reda, Alex, Siegel, Seth R., Singh, Saurabh, Wang, Haochen, Wulf, Dallas
We present the first results of the holographic beam mapping program for the Canadian Hydrogen Intensity Mapping Experiment (CHIME). We describe the implementation of the holographic technique as adapted for CHIME, and introduce the processing pipeli
Externí odkaz:
http://arxiv.org/abs/2408.00172
Autor:
Dai, Fei, Howard, Andrew W., Halverson, Samuel, Orell-Miquel, Jaume, Palle, Enric, Isaacson, Howard, Fulton, Benjamin, Price, Ellen M., Plotnykov, Mykhaylo, Rogers, Leslie A., Valencia, Diana, Paragas, Kimberly, Greklek-McKeon, Michael, Barrientos, Jonathan Gomez, Knutson, Heather A., Petigura, Erik A., Weiss, Lauren M., Lee, Rena, Brinkman, Casey L., Huber, Daniel, Steffansson, Gudmundur, Masuda, Kento, Giacalone, Steven, Lu, Cicero X., Kite, Edwin S., Hu, Renyu, Gaidos, Eric, Zhang, Michael, Rubenzahl, Ryan A., Winn, Joshua N., Han, Te, Beard, Corey, Holcomb, Rae, Householder, Aaron, Gilbert, Gregory J., Lubin, Jack, Ong, J. M. Joel, Polanski, Alex S., Saunders, Nicholas, Van Zandt, Judah, Yee, Samuel W., Zhang, Jingwen, Zink, Jon, Holden, Bradford, Baker, Ashley, Brodheim, Max, Crossfield, Ian J. M., Deich, William, Edelstein, Jerry, Gibson, Steven R., Hill, Grant M., Jelinsky, Sharon R, Kassis, Marc, Laher, Russ R., Lanclos, Kyle, Lilley, Scott, Payne, Joel N., Rider, Kodi, Robertson, Paul, Roy, Arpita, Schwab, Christian, Shaum, Abby P., Sirk, Martin M., Smith, Chris, Vandenberg, Adam, Walawender, Josh, Wang, Sharon X., Shin-Ywan, Wang, Wishnow, Edward, Wright, Jason T., Yeh, Sherry, Caballero, Jos. A., Morales, Juan C., Murgas, Felipe, Nagel, Evangelos, Reiners, Ansgar, Schweitzer, Andreas, Tabernero, Hugo M., Zechmeister, Mathias, Spencer, Alton, Ciardi, David R., Clark, Catherine A., Lund, Michael B., Caldwell, Douglas A., Collins, Karen A., Schwarz, Richard P., Barkaoui, Khalid, Watkins, Cristilyn N., Shporer, Avi, Narita, Norio, Fukui, Akihiko, Srdoc, Gregor, Latham, David W., Jenkins, Jon M., Ricker, George R., Seager, Sara, Vanderspek, Roland
TOI-6255~b (GJ 4256) is an Earth-sized planet (1.079$\pm0.065$ $R_\oplus$) with an orbital period of only 5.7 hours. With the newly commissioned Keck Planet Finder (KPF) and CARMENES spectrographs, we determined the planet's mass to be 1.44$\pm$0.14
Externí odkaz:
http://arxiv.org/abs/2407.21167
Autor:
Dong, Jinghan, Cardoso, Arthur C., Zhou, Haichen, Zhang, Jingrui, Nie, Weijie, Clark, Alex S., Rarity, John G.
Here we present a high-sensitivity, rapid, and low-cost method for methane sensing based on a nonlinear interferometer. This method utilizes signal photons generated by stimulated parametric down-conversion (ST-PDC), enabling the use of a silicon det
Externí odkaz:
http://arxiv.org/abs/2407.20201
Autor:
Hejazi, Neda, Crossfield, Ian J. M., Souto, Diogo, Brande, Jonathan, Nordlander, Thomas, Marfil, Emilio, Cunha, Katia, Coria, David R., Maas, Zachary G., Polanski, Alex S., Hinkel, Natalie R., Hand, Joseph E.
We present an in-depth, high-resolution spectroscopic analysis of the M dwarf K2-18 that hosts a sub-Neptune exoplanet in its habitable zone. We show our technique to accurately normalize the observed spectrum, which is crucial for a proper spectral
Externí odkaz:
http://arxiv.org/abs/2407.07869
Autor:
Isaacson, Howard, Howard, Andrew W., Fulton, Benjamin, Petigura, Erik A., Weiss, Lauren M., Kane, Stephen R., Carter, Brad, Beard, Corey, Giacalone, Steven, Van Zandt, Judah, Murphy, Joseph M. Akana, Dai, Fei, Chontos, Ashley, Polanski, Alex S., Rice, Malena, Lubin, Jack, Brinkman, Casey, Rubenzahl, Ryan A., Blunt, Sarah, Yee, Samuel W., MacDougall, Mason G., Dalba, Paul A., Tyler, Dakotah, Behmard, Aida, Angelo, Isabel, Pidhorodetska, Daria, Mayo, Andrew W., Holcomb, Rae, Turtelboom, Emma V., Hill, Michelle L., Bouma, Luke G., Zhang, Jingwen, Crossfield, Ian J. M., Saunders, Nicholas
We present optical spectroscopy of 710 solar neighborhood stars collected over twenty years to catalog chromospheric activity and search for stellar activity cycles. The California Legacy Survey stars are amenable to exoplanet detection using precise
Externí odkaz:
http://arxiv.org/abs/2406.17332