Zobrazeno 1 - 10
of 3 185
pro vyhledávání: '"A Keto"'
Autor:
Keto, Eric, Watters, Wesley Andres
In this study, we present a method for detecting and analyzing the velocities of moving objects in Earth observation satellite images, specifically using data from Planet Labs' push broom scanning satellites. By exploiting the sequential acquisition
Externí odkaz:
http://arxiv.org/abs/2406.13710
Autor:
Keto, Eric, Watters, Wesley Andres
In multi-spectral images made by Earth observation satellites that use push-broom scanning, such as those operated by Planet Labs Corp., moving objects can be identified by the appearance of the object at a different locations in each spectral band.
Externí odkaz:
http://arxiv.org/abs/2406.13697
Autor:
Keto, Eric, Watters, Wesley Andres
Publikováno v:
Journal of Astronomical Instrumentation, 2023, Volume 12, Issue 1, id. 2340007-515
Moving objects have characteristic signatures in multi-spectral images made by Earth observation satellites that use push broom scanning. While the general concept is applicable to all satellites of this type, each satellite design has its own unique
Externí odkaz:
http://arxiv.org/abs/2406.07566
The chemistry of H2O, CO and other small molecular species in an isolated pre-stellar core, L1544, has been assessed in the context of a comprehensive gas-grain chemical model, coupled to an empirically constrained physical/dynamical model. Our main
Externí odkaz:
http://arxiv.org/abs/2404.15876
Autor:
Keto, Eric
We re-analyze the data of the BU-FCRAO $^{13}{\rm CO}$ Galactic Ring Survey (GRS) to understand the dynamics of the turbulent molecular interstellar medium. We define molecular clouds by their spatial half-power contours of $^{13}{\rm CO}$ integrated
Externí odkaz:
http://arxiv.org/abs/2404.10979
Autor:
Baer-Way, Raphael, DeGraw, Asia, Zheng, Weikang, Van Dyk, Schuyler D., Filippenko, Alexei V., Fox, Ori D., Brink, Thomas G., Kelly, Patrick L., Smith, Nathan, Vasylyev, Sergiy S., de Jaeger, Thomas, Zhang, Keto, Stegman, Samantha, Ross, Timothy, Yunus, Sameen
Over recent decades, robotic (or highly automated) searches for supernovae (SNe) have discovered several thousand events, many of them in quite nearby galaxies (distances < 30 Mpc). Most of these SNe, including some of the best-studied events to date
Externí odkaz:
http://arxiv.org/abs/2401.12185
Autor:
Watters, Wesley Andrés, Loeb, Abraham, Laukien, Frank, Cloete, Richard, Delacroix, Alex, Dobroshinsky, Sergei, Horvath, Benjamin, Kelderman, Ezra, Little, Sarah, Masson, Eric, Mead, Andrew, Randall, Mitch, Schultz, Forrest, Szenher, Matthew, Vervelidou, Foteini, White, Abigail, Ahlström, Angelique, Cleland, Carol, Dockal, Spencer, Donahue, Natasha, Elowitz, Mark, Ezell, Carson, Gersznowicz, Alex, Gold, Nicholas, Hercz, Michael G., Keto, Eric, Knuth, Kevin H., Lux, Anthony, Melnick, Gary J., Moro-Martín, Amaya, Martin-Torres, Javier, Ribes, Daniel Llusa, Sail, Paul, Teodorani, Massimo, Tedesco, John Joseph, Tedesco, Gerald Thomas, Tu, Michelle, Zorzano, Maria-Paz
Publikováno v:
Journal of Astronomical Instrumentation, 12(1), 2340006 (2023)
(Abridged) Unidentified Aerial Phenomena (UAP) have resisted explanation and have received little formal scientific attention for 75 years. A primary objective of the Galileo Project is to build an integrated software and instrumentation system desig
Externí odkaz:
http://arxiv.org/abs/2305.18566
Autor:
Szenher, Matthew, Delacroix, Alex, Keto, Eric, Little, Sarah, Randall, Mitch, Watters, Wesley Andrés, Masson, Eric, Cloete, Richard
Publikováno v:
Journal of Astronomical Instrumentation, 12(1), 2340002 (2023)
To date, there are little reliable data on the position, velocity and acceleration characteristics of Unidentified Aerial Phenomena (UAP). The dual hardware and software system described in this document provides a means to address this gap. We descr
Externí odkaz:
http://arxiv.org/abs/2305.18555
Autor:
Ahmadi, Aida, Beuther, H., Bosco, F., Gieser, C., Suri, S., Mottram, J. C., Kuiper, R., Henning, Th., Sánchez-Monge, Á., Linz, H., Pudritz, R. E., Semenov, D., Winters, J. M., Möller, T., Beltrán, M. T., Csengeri, T., Galván-Madrid, R., Johnston, K. G., Keto, E., Klaassen, P. D., Leurini, S., Longmore, S. N., Lumsden, S. L., Maud, L. T., Moscadelli, L., Palau, A., Peters, T., Ragan, S. E., Urquhart, J. S., Zhang, Q., Zinnecker, H.
Publikováno v:
A&A 677, A171 (2023)
The fragmentation mode of high-mass molecular clumps and the accretion processes that form the most massive stars ($M\gtrsim 8M_\odot$) are still not well understood. To this end, we have undertaken a large observational program (CORE) making use of
Externí odkaz:
http://arxiv.org/abs/2305.00020
Autor:
Mauerhan, Jon C., Smith, Nathan, Williams, G. Grant, Smith, Paul S., Filippenko, Alexei V., Bilinski, Christopher, Zheng, WeiKang, Brink, Thomas G., Hoffman, Jennifer L., Leonard, Douglas C., Milne, Peter, Jeffers, Benjamin, Modak, Shaunak, Stegman, Samantha, Zhang, Keto D.
We present multiepoch spectropolarimetry of the superluminous interacting Type IIn supernova SN2017hcc, covering 16 to 391 days after explosion. In our first epoch we measure continuum polarization as high as 6%, making SN 2017hcc the most intrinsica
Externí odkaz:
http://arxiv.org/abs/2304.12368