Zobrazeno 1 - 10
of 311
pro vyhledávání: '"Schwarz Dominik J."'
Autor:
Bhardwaj, Nitesh, Schwarz, Dominik J., Hale, Catherine L., Duncan, Kenneth J., Camera, Stefano, Heneka, Caroline S., Nakoneczny, Szymon J., Röttgering, Huub J. A., Siewert, Thilo M., Tiwari, Prabhakar, Zheng, Jinglan, Miley, George, Tasse, Cyril
In this work we study the flux density dependence of the redshift distribution of low-frequency radio sources observed in the LOFAR Two-metre Sky Survey (LoTSS) deep fields and apply it to estimate the clustering length of the large-scale structure o
Externí odkaz:
http://arxiv.org/abs/2406.17924
Autor:
Fallows Richard A., Forte Biagio, Astin Ivan, Allbrook Tom, Arnold Alex, Wood Alan, Dorrian Gareth, Mevius Maaijke, Rothkaehl Hanna, Matyjasiak Barbara, Krankowski Andrzej, Anderson James M., Asgekar Ashish, Avruch I. Max, Bentum Mark, Bisi Mario M., Butcher Harvey R., Ciardi Benedetta, Dabrowski Bartosz, Damstra Sieds, de Gasperin Francesco, Duscha Sven, Eislöffel Jochen, Franzen Thomas M.O., Garrett Michael A., Grießmeier Jean-Matthias, Gunst André W., Hoeft Matthias, Hörandel Jörg R., Iacobelli Marco, Intema Huib T., Koopmans Leon V.E., Maat Peter, Mann Gottfried, Nelles Anna, Paas Harm, Pandey Vishambhar N., Reich Wolfgang, Rowlinson Antonia, Ruiter Mark, Schwarz Dominik J., Serylak Maciej, Shulevski Aleksander, Smirnov Oleg M., Soida Marian, Steinmetz Matthias, Thoudam Satyendra, Toribio M. Carmen, van Ardenne Arnold, van Bemmel Ilse M., van der Wiel Matthijs H.D., van Haarlem Michiel P., Vermeulen René C., Vocks Christian, Wijers Ralph A.M.J., Wucknitz Olaf, Zarka Philippe, Zucca Pietro
Publikováno v:
Journal of Space Weather and Space Climate, Vol 10, p 10 (2020)
This paper presents the results from one of the first observations of ionospheric scintillation taken using the Low-Frequency Array (LOFAR). The observation was of the strong natural radio source Cassiopeia A, taken overnight on 18–19 August 2013,
Externí odkaz:
https://doaj.org/article/8314cb34774d4b90bf8e549f3b572cca
Publikováno v:
MNRAS 529, Issue 4, April 2024, Pages 3816-3827
Recent Gaia observations suggest that some hypervelocity stars (HVSs) might originate from outside the Galaxy. We ask if these HVSs could come from as far as Andromeda. Therefore, we simulate HVSs originating in Andromeda with initial conditions base
Externí odkaz:
http://arxiv.org/abs/2306.08143
Autor:
Böhme, Lukas, Schwarz, Dominik J., de Gasperin, Francesco, Röttgering, Huub J. A., Williams, Wendy L.
Publikováno v:
A&A 674, A189 (2023)
Aims. With the recent preliminary release of the LOFAR LBA Sky Survey (LoLSS), the first wide-area, ultra-low frequency observations from LOFAR were published. Our aim is to combine this data set with other surveys at higher frequencies to study the
Externí odkaz:
http://arxiv.org/abs/2304.14829
Publikováno v:
A&A 668, A34 (2022)
We determine the proper motion of the Solar system from the Pantheon sample of supernovae (SNe) of type Ia. The posterior distribution of the Solar system proper velocity, its direction and relevant cosmological parameters are obtained based on the o
Externí odkaz:
http://arxiv.org/abs/2111.03055
Autor:
Tiwari, Prabhakar, Zhao, Ruiyang, Zheng, Jinglan, Zhao, Gong-Bo, Bacon, David, Schwarz, Dominik J.
Publikováno v:
ApJ 928 38 (2022)
The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing survey aiming to observe the entire Northern sky, providing an excellent opportunity to study the distribution and evolution of the large-scale structure of the Universe. The source catalogue from
Externí odkaz:
http://arxiv.org/abs/2104.03320
Autor:
Kuhnel, Florian, Schwarz, Dominik J.
We argue that primordial black-hole formation must be described by means of extreme-value theory. This is a consequence of the large values of the energy density required to initiate the collapse of black holes in the early Universe and the finite du
Externí odkaz:
http://arxiv.org/abs/2101.10340
Publikováno v:
Phys. Rev. D 103, 063506 (2021)
We study the influence of lepton flavour asymmetries on the formation and the mass spectrum of primordial black holes. We estimate the detectability of their mergers with LIGO/Virgo and show that the currently published gravitational wave events may
Externí odkaz:
http://arxiv.org/abs/2011.07283
Publikováno v:
A&A 653, A9 (2021)
The Cosmic Radio Dipole is of fundamental interest to cosmology. Recent studies revealed open questions about the nature of the observed Cosmic Radio Dipole. We use simulated source count maps to test a linear and a quadratic estimator for its possib
Externí odkaz:
http://arxiv.org/abs/2010.08366
We measure the harmonic-space auto-power spectrum of the galaxy overdensity in the LOFAR Two-metre Sky Survey (LoTSS) First Data Release and its cross correlation with the map of the lensing convergence of the cosmic microwave background (CMB) from t
Externí odkaz:
http://arxiv.org/abs/2009.01817