Zobrazeno 1 - 10
of 191 994
pro vyhledávání: '"P, Walker"'
Autor:
Dehghanian, Maryam, Arav, Nahum, Kriss, Gerard A., Mehdipour, Missagh, Byun, Doyee, Walker, Gwen, Sharma, Mayank, Barth, Aaron J., Bentz, Misty C., Boizelle, Benjamin D., Brotherton, Michael S., Cackett, Edward M., Bonta, Elena Dalla, De Rosa, Gisella, Ferland, Gary J., Fian, Carina, Filippenko, Alexei V., Gelbord, Jonathan, Goad, Michael R., Horne, Keith, Homayouni, Yasaman, Ilic, Dragana, Joner, Michael D., Kara, Erin A., Kaspi, Shai, Kochanek, Christopher S., Korista, Kirk T., Kosec, Peter, Kovacevic, Andjelka B., Landt, Hermine, Lewin, Collin, Partington, Ethan R., Popovic, Luka C., Proga, Daniel, Rogantini, Daniele, Siebert, Matthew R., Storchi-Bergmann, Thaisa, Vestergaard, Marianne, Waters, Timothy, Wang, Jian-Min, Zaidouni, Fatima, Zu, Ying
We observed the Seyfert 1 galaxy Mrk817 during an intensive multi-wavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in HST/COS spectra, both during the campaign and in other epoc
Externí odkaz:
http://arxiv.org/abs/2407.04164
Well-posedness of certain semilinear parabolic problems with nonlocal initial conditions is shown in time-weighted spaces. The result is applied to recover the initial states in semilinear parabolic problems with nonlinearities of superlinear behavio
Externí odkaz:
http://arxiv.org/abs/2407.03829
Autor:
Gosselink, Brigitte Hoyer, Brandt, Kate, Croak, Marian, DeSalvo, Karen, Gomes, Ben, Ibrahim, Lila, Johnson, Maggie, Matias, Yossi, Porat, Ruth, Walker, Kent, Manyika, James
Advances in Artificial Intelligence (AI) are helping tackle a growing number of societal challenges, demonstrating technology's increasing capability to address complex issues, including those outlined in the United Nations (UN) Sustainable Developme
Externí odkaz:
http://arxiv.org/abs/2407.02711
Autor:
Walker, Elliott, Yamazaki, Kazuo
We consider the momentum formulation of the two-dimensional surface quasi-geostrophic equations forced by random noise, of both additive and linear multiplicative types. For any prescribed deterministic function under some conditions, we construct so
Externí odkaz:
http://arxiv.org/abs/2407.00920
We introduce and study the pinnacle sets of a simple graph $G$ with $n$ vertices. Given a bijective vertex labeling $\lambda\,:\,V(G)\rightarrow [n]$, the label $\lambda(v)$ of vertex $v$ is a pinnacle of $(G, \lambda)$ if $\lambda(v)>\lambda(w)$ for
Externí odkaz:
http://arxiv.org/abs/2406.19562
We present our findings from the new deep Chandra observations ($256$ ks) of the merging galaxy cluster SPT-CL J2031-4037 at $z = 0.34$. Our observations reveal intricate structures seen in a major merger akin to the Bullet Cluster. The X-ray data co
Externí odkaz:
http://arxiv.org/abs/2406.19264
Cosmological parameters such as $\Omega_{\rm{M}}$ and $\sigma_{8}$ can be measured indirectly using various methods, including galaxy cluster abundance and cosmic shear. These measurements constrain the composite parameter $S_{8}$, leading to degener
Externí odkaz:
http://arxiv.org/abs/2406.17849
Ranges of the real-valued parameters $\alpha$, $a$, $b$, and $m$ are identified for which the operator $$\mathcal{A}_{\alpha}(a,b)f(x):=x^\alpha\left(f''(x)+\frac{a}{x}f'(x)+\frac{b}{x^2}f(x)\right), \quad x>0,$$ generates an analytic semigroup in $L
Externí odkaz:
http://arxiv.org/abs/2406.16389
Autor:
Sinclair, Adrian K., Burgoyne, James, Huber, Anthony I., Murphy, Colin, Choi, Steve K., Duell, Cody J., Huber, Zachary B., Li, Yaqiong, Chapman, Scott C., Niemack, Michael D., Nikola, Thomas, Vavagiakis, Eve M., Walker, Samantha, Wheeler, Jordan D., Austermann, Jason, Lin, Lawrence, Xie, Ruixuan, Zou, Bugao, Mauskopf, Philip D.
The Fred Young Submillimeter Telescope (FYST), on Cerro Chajnantor in the Atacama desert of Chile, will conduct wide-field and small deep-field surveys of the sky with more than 100,000 detectors on the Prime-Cam instrument. Kinetic inductance detect
Externí odkaz:
http://arxiv.org/abs/2406.14892
Autor:
Thielemann, Fabian, Siemund, Joachim, von Schoenfeld, Daniel, Wu, Wei, Weckesser, Pascal, Jachymski, Krzysztof, Walker, Thomas, Schaetz, Tobias
Revealing the quantum properties of matter requires a high degree of experimental control accompanied by a profound theoretical understanding. At ultracold temperatures, quantities that appear continuous in everyday life, such as the motional angular
Externí odkaz:
http://arxiv.org/abs/2406.13410