Zobrazeno 1 - 10
of 2 757
pro vyhledávání: '"A. Widmark"'
Autor:
Widmark, Axel, Naik, Aneesh P.
Publikováno v:
A&A 686, A70 (2024)
We apply the vertical Jeans equation to the Milky Way disk, in order to study non-axisymmetric variations in the thin disk surface density. We divide the disk plane into area cells with a 100 pc grid spacing, and use four separate subsets of the Gaia
Externí odkaz:
http://arxiv.org/abs/2401.04571
Fuzzy dark matter (FDM) has dynamical properties that differ significantly from cold dark matter (CDM). These dynamical differences are strongly manifested on the spatial scale of dwarf spheroidal galaxies (dSphs), which roughly corresponds to the de
Externí odkaz:
http://arxiv.org/abs/2309.00039
Autor:
Naik, Aneesh P., Widmark, Axel
In an earlier work, we demonstrated the effectiveness of Bayesian neural networks in estimating the missing line-of-sight velocities of Gaia stars, and published an accompanying catalogue of blind predictions for the line-of-sight velocities of stars
Externí odkaz:
http://arxiv.org/abs/2307.13398
Autor:
Delos, M. Sten, Korsmeier, Michael, Widmark, Axel, Blanco, Carlos, Linden, Tim, White, Simon D. M.
Publikováno v:
Phys. Rev. D 109, 083512 (2024)
Recent studies indicate that thermally produced dark matter will form highly concentrated, low-mass cusps in the early universe that often survive until the present. While these cusps contain a small fraction of the dark matter, their high density si
Externí odkaz:
http://arxiv.org/abs/2307.13023
Cold gas forms a significant mass fraction of the Milky Way disk, but is its most uncertain baryonic component. The density and distribution of cold gas is of critical importance for Milky Way dynamics, as well as models of stellar and galactic evolu
Externí odkaz:
http://arxiv.org/abs/2208.11704
Publikováno v:
A&A 668, A95 (2022)
We have mapped the number density and mean vertical velocity of the Milky Way's stellar disk out to roughly two kiloparsecs from the Sun using Gaia Data Release 3 (DR3) and complementary photo-astrometric distance information from StarHorse. For the
Externí odkaz:
http://arxiv.org/abs/2207.03492
Autor:
Naik, Aneesh, Widmark, Axel
While Gaia has observed the phase space coordinates of over a billion stars in the Galaxy, in the overwhelming majority of cases it has only obtained five of the six coordinates, the missing dimension being the radial (line-of-sight) velocity. Using
Externí odkaz:
http://arxiv.org/abs/2206.04102
Autor:
Josefine Grefve, Karin Söderkvist, Adalsteinn Gunnlaugsson, Kristina Sandgren, Joakim Jonsson, Angsana Keeratijarut Lindberg, Erik Nilsson, Jan Axelsson, Anders Bergh, Björn Zackrisson, Mathieu Moreau, Camilla Thellenberg Karlsson, Lars.E. Olsson, Anders Widmark, Katrine Riklund, Lennart Blomqvist, Vibeke Berg Loegager, Sara N. Strandberg, Tufve Nyholm
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 31, Iss , Pp 100633- (2024)
Background and purpose: Dose escalation in external radiotherapy of prostate cancer shows promising results in terms of biochemical disease-free survival. Boost volume delineation guidelines are sparse which may cause high interobserver variability.
Externí odkaz:
https://doaj.org/article/21d53176ea1943b9b10d284487282b37
Autor:
Maryam Zarei, Elin Wallsten, Josefine Grefve, Karin Söderkvist, Adalsteinn Gunnlaugsson, Kristina Sandgren, Joakim Jonsson, Angsana Keeratijarut Lindberg, Erik Nilsson, Anders Bergh, Björn Zackrisson, Mathieu Moreau, Camilla Thellenberg Karlsson, Lars E. Olsson, Anders Widmark, Katrine Riklund, Lennart Blomqvist, Vibeke Berg Loegager, Jan Axelsson, Sara N. Strandberg, Tufve Nyholm
Publikováno v:
Acta Oncologica, Vol 63, Iss 1 (2024)
Background: The delineation of intraprostatic lesions is vital for correct delivery of focal radiotherapy boost in patients with prostate cancer (PC). Errors in the delineation could translate into reduced tumour control and potentially increase the
Externí odkaz:
https://doaj.org/article/af596338fcfa417988e8835bcd58f1ae
Autor:
Bechtol, Keith, Birrer, Simon, Cyr-Racine, Francis-Yan, Schutz, Katelin, Adhikari, Susmita, Amin, Mustafa, Banerjee, Arka, Bird, Simeon, Blinov, Nikita, Boddy, Kimberly K., Boehm, Celine, Bundy, Kevin, Buschmann, Malte, Chakrabarti, Sukanya, Curtin, David, Dai, Liang, Drlica-Wagner, Alex, Dvorkin, Cora, Erickcek, Adrienne L., Gilman, Daniel, Heeba, Saniya, Kim, Stacy, Iršič, Vid, Leauthaud, Alexie, Lovell, Mark, Lukić, Zarija, Mao, Yao-Yuan, Mau, Sidney, Mitridate, Andrea, Mocz, Philip, Muñoz, Julian B., Nadler, Ethan O., Peter, Annika H. G., Price-Whelan, Adrian, Robertson, Andrew, Sabti, Nashwan, Sehgal, Neelima, Shipp, Nora, Simon, Joshua D., Singh, Rajeev, Van Tilburg, Ken, Wechsler, Risa H., Widmark, Axel, Yu, Hai-Bo
The non-linear process of cosmic structure formation produces gravitationally bound overdensities of dark matter known as halos. The abundances, density profiles, ellipticities, and spins of these halos can be tied to the underlying fundamental parti
Externí odkaz:
http://arxiv.org/abs/2203.07354