Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Keim, Michael"'
Autor:
Tang, Yimeng, Romanowsky, Aaron J., van Dokkum, Pieter G., Jarrett, T. H., Bundy, Kevin A., Buzzo, Maria Luisa, Danieli, Shany, Gannon, Jonah S., Keim, Michael A., Laine, Seppo, Shen, Zili
NGC 1052-DF2 and -DF4 are two ultra-diffuse galaxies that have been reported as deficient in dark matter and associated with the same galaxy group. Recent findings suggest that DF2 and DF4 are part of a large linear substructure of dwarf galaxies tha
Externí odkaz:
http://arxiv.org/abs/2410.19331
Autor:
Shen, Zili, Bowman, William P., van Dokkum, Pieter, Abraham, Roberto G., Pasha, Imad, Keim, Michael A., Liu, Qing, Lokhorst, Deborah M., Janssens, Steven R., Chen, Seery
The Dragonfly Telephoto Array employs a unique design to detect very large and diffuse galaxies, which might be missed with conventional telescopes. The Dragonfly Ultrawide Survey (DFUWS) is a new wide-field survey which will cover 10,000 deg$^2$ of
Externí odkaz:
http://arxiv.org/abs/2407.05200
Autor:
Rieck, Steven, Criswell, Alexander W., Korol, Valeriya, Keim, Michael A., Bloom, Malachy, Mandic, Vuk
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 531, Issue 2, June 2024, Pages 2642-2652
The Laser Interferometer Space Antenna (LISA) is expected to detect a wide variety of gravitational wave sources in the mHz band. Some of these signals will elude individual detection, instead contributing as confusion noise to one of several stochas
Externí odkaz:
http://arxiv.org/abs/2308.12437
Autor:
Liu, Qing, Abraham, Roberto G., Martin, Peter G., Bowman, William P., van Dokkum, Pieter, Janssens, Steven R., Chen, Seery, Keim, Michael A., Lokhorst, Deborah, Pasha, Imad, Shen, Zili, Zhang, Jielai
Unbiased sky background modeling is crucial for the analysis of deep wide-field images, but it remains a major challenge in low surface brightness astronomy. Traditional image processing algorithms are often designed to produce artificially flat back
Externí odkaz:
http://arxiv.org/abs/2306.07922
Autor:
van Dokkum, Pieter, Pasha, Imad, Buzzo, Maria Luisa, LaMassa, Stephanie, Shen, Zili, Keim, Michael A., Abraham, Roberto, Conroy, Charlie, Danieli, Shany, Mitra, Kaustav, Nagai, Daisuke, Natarajan, Priyamvada, Romanowsky, Aaron J., Tremblay, Grant, Urry, C. Megan, Bosch, Frank C. van den
Publikováno v:
Astrophysical Journal Letters, 946, L50 (2023)
The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind it. Here we report the serendipitous discovery of an extremely narrow linear fe
Externí odkaz:
http://arxiv.org/abs/2302.04888
The Laser Interferometer Space Antenna (LISA) will unveil the non-transient gravitational wave sky full of inspiralling stellar-mass compact binaries within the Local Universe. The Large Magellanic Cloud (LMC) is expected to be prominent on the LISA
Externí odkaz:
http://arxiv.org/abs/2207.14277
Autor:
van Dokkum, Pieter, Shen, Zili, Romanowsky, Aaron J., Abraham, Roberto, Conroy, Charlie, Danieli, Shany, Chowdhury, Dhruba Dutta, Keim, Michael A., Kruijssen, J. M. Diederik, Leja, Joel, Trujillo-Gomez, Sebastian
Publikováno v:
ApJ, 940, L9 (2022)
It was recently proposed that the dark matter-deficient ultra-diffuse galaxies DF2 and DF4 in the NGC1052 group could be the products of a "bullet dwarf" collision between two gas-rich progenitor galaxies. In this model DF2 and DF4 formed at the same
Externí odkaz:
http://arxiv.org/abs/2207.07129
Autor:
Marshall, Alastair, Salhov, Alon, Gierse, Martin, Müller, Christoph, Keim, Michael, Lucas, Sebastian, Parker, Anna, Scheuer, Jochen, Vassiliou, Christophoros, Neumann, Philipp, Jelezko, Fedor, Retzker, Alex, Blanchard, John W., Schwartz, Ilai, Knecht, Stephan
Publikováno v:
J. Phys. Chem. Lett.,2023,14,2125-2132
Magnetic resonance imaging of $^{13}$C-labeled metabolites enhanced by parahydrogen-induced polarization (PHIP) can enable real-time monitoring of processes within the body. We introduce a robust, easily implementable technique for transferring parah
Externí odkaz:
http://arxiv.org/abs/2205.15709
Autor:
van Dokkum, Pieter, Shen, Zili, Keim, Michael A., Trujillo-Gomez, Sebastian, Danieli, Shany, Chowdhury, Dhruba Dutta, Abraham, Roberto, Conroy, Charlie, Kruijssen, J. M. Diederik, Nagai, Daisuke, Romanowsky, Aaron
The ultra-diffuse galaxies DF2 and DF4 in the NGC1052 group share several unusual properties: they both have large sizes, rich populations of overluminous and large globular clusters, and very low velocity dispersions indicating little or no dark mat
Externí odkaz:
http://arxiv.org/abs/2205.08552
Autor:
Pasha, Imad, Lokhorst, Deborah, van Dokkum, Pieter G., Chen, Seery, Abraham, Roberto, Greco, Johnny, Danieli, Shany, Miller, Tim, Lippitt, Erin, Polzin, Ava, Shen, Zili, Keim, Michael A., Liu, Qing, Merritt, Allison, Zhang, Jielai
We identify a $\sim$600 pc-wide region of active star formation located within a tidal streamer of M82 via $H\alpha$ emission ($F_{H\alpha}\sim 6.5\times10^{-14}$ erg s$^{-1}$ cm$^{-2}$), using a pathfinder instrument based on the Dragonfly Telephoto
Externí odkaz:
http://arxiv.org/abs/2112.07052