Now showing items 491-510 of 1247

  • Du, Minghui; Yang, Weiqiang; Xu, Lixin; Pan, Supriya; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The detection of gravitational waves (GW) by the LIGO and Virgo collaborations offers a whole new range of possible tests and opens up a new window that may shed light on the nature of dark energy and dark matter. In the ...
  • Gonzalez, Gabriel (Master thesis / Masteroppgave, 2019)
  • Andrade-Oliveira, Felipe; Camacho, Hugo; Faga, L.; Gomes, R.; Rosenfeld, R.; Troja, A.; Alves, O.; Doux, Cyrille; Elvin-Poole, J.; Fang, Xiao; Friedrich, Oliver; Kokron, N.; Lima, M.; Miranda, V.; Pandey, S.; Porredon, Anna; Sanchez, J.; Aguena, Michel; Allam, Sahar; Annis, James; Avila, Santiago; Bertin, Emmanuel; Brooks, D.; Burke, David L.; Carrasco Kind, Matias; Carretero, Jorge; Cawthon, Ross; Chang, Chihway L.; Choi, A.; Costanzi, Matteo; Crocce, Martin; da Costa, Luiz N.; Pereira, Maria Elidaiana da Silva; Desai, S.; Diehl, Herman T.; Doel, Peter; Drlica-Wagner, Alex; Everett, Spencer; Evrard, August E.; Ferrero, Ismael; Frieman, Josh; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Gruen, Daniel; Gruendl, Robert A.; Hinton, Samuel R.; Hollowood, Devon L.; Jain, Bhuvnesh; James, David J.; Kuropatkin, Nikolay; Lahav, Ofer; MacCrann, Niall; Maia, Marcio A. G.; March, Marisa; Melchior, Peter; Menanteau, Felipe; Miquel, Ramon; Morgan, R.; Myles, Justin; Ogando, Ricardo L. C.; Palmese, Antonella; Paz-Chinchón, Francisco; Plazas Malagón, Andrés A.; Rodriguez-Monroy, Martin; Sanchez, E.; Scarpine, Vic; Serrano, Santiago; Sevilla-Noarbe, Ignacio; Smith, Mathew; Soares-Santos, Marcelle; Suchyta, Eric; Tarlé, Gregory; To, Chun-Hao (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    ABSTRACT We perform an analysis in harmonic space of the Dark Energy Survey Year 1 Data (DES-Y1) galaxy clustering photometric data using products obtained for the real-space analysis. We test our pipeline with ...
  • Cheng, Ting-Yun; Conselice, Christopher J.; Aragón-Salamanca, Alfonso; Aguena, Michel; Allam, Sahar; Andrade-Oliveira, F.; Annis, J.; Bluck, A. F. L.; Brooks, D.; Burke, David L.; Carrasco Kind, Matias; Carretero, Jorge; Choi, A.; Costanzi, Matteo; da Costa, Luiz N.; Pereira, Maria Elidaiana da Silva; De Vicente, Juan; Diehl, Herman T.; Drlica-Wagner, Alex; Eckert, K.; Everett, S.; Evrard, August E.; Ferrero, Ismael; Fosalba, Pablo; Frieman, Josh; García-Bellido, Juan; Gerdes, David W.; Giannantonio, Tommaso; Gruen, Daniel; Gruendl, Robert A.; Gschwend, Julia; Gutierrez, G.; Hinton, Samuel R.; Hollowood, Devon L.; Honscheid, Klaus; James, David J.; Krause, E.; Kuehn, Kyler; Kuropatkin, Nikolay; Lahav, Ofer; Maia, Marcio A. G.; March, Marisa; Menanteau, Felipe; Miquel, Ramon; Morgan, R.; Paz-Chinchón, Francisco; Pieres, Adriano; Plazas Malagón, Andrés A.; Roodman, A.; Sanchez, E.; Scarpine, Vic; Serrano, S.; Sevilla-Noarbe, Ignacio; Smith, Mathew; Soares-Santos, Marcelle; Suchyta, E.; Swanson, Molly E. C.; Tarlé, Gregory; Thomas, Daniel; To, Chun-Hao (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    ABSTRACT We present in this paper one of the largest galaxy morphological classification catalogues to date, including over 20 million galaxies, using the Dark Energy Survey (DES) Year 3 data based on convolutional ...
  • Lee, Sujeong; Troxel, Michael A.; Choi, A.; Elvin-Poole, J.; Hirata, C.; Honscheid, Klaus; Huff, Eric M.; MacCrann, Niall; Ross, Ashley J.; Eifler, Tim F.; Chang, Chihway L.; Miquel, Ramon; Omori, Y.; Prat, Judit; Bernstein, Gary M.; Davis, Christopher; DeRose, J.; Gatti, M.; Rau, Markus Michael; Samuroff, Simon; Sánchez, Carles; Vielzeuf, P.; Zuntz, Joseph; Aguena, Michel; Allam, Sahar; Amon, A.; Andrade-Oliveira, F.; Bertin, Emmanuel; Brooks, D.; Burke, David L.; Carnero Rosell, Aurelio; Carrasco Kind, Matias; Carretero, Jorge; Castander, F. J.; Cawthon, R.; Conselice, Christopher; Costanzi, Matteo; da Costa, L. N.; Pereira, Maria Elidaiana da Silva; De Vicente, Juan; Desai, S.; Diehl, Herman T.; Dietrich, Jörg P.; Doel, P.; Everett, S.; Evrard, August E.; Ferrero, Ismael; Flaugher, B.; Fosalba, Pablo; Frieman, J.; García-Bellido, Juan; Gaztañaga, Enrique; Gerdes, David W.; Giannantonio, Tommaso; Gruen, Daniel; Gruendl, Robert A.; Gschwend, J.; Gutierrez, G.; Hartley, William G.; Hinton, Samuel R.; Hollowood, Devon L.; Hoyle, B.; Huterer, Dragan; James, D. J.; Kuehn, Kyler; Kuropatkin, Nikolay; Lahav, Ofer; Lima, M.; Maia, Marcio A. G.; March, Marisa; Marshall, Jennifer L.; Menanteau, Felipe; Mohr, Joseph J.; Morgan, R.; Palmese, Antonella; Paz-Chinchón, Francisco; Pieres, Adriano; Plazas Malagón, Andrés A.; Roodman, A.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, Ignacio; Sheldon, E.; Smith, Mathew; Suchyta, Eric; Swanson, Molly E. C.; Tarlé, Gregory; Thomas, Daniel; To, Chun-Hao; Varga, Tamas Norbert; Weller, Jochen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The DMASS sample is a photometric sample from the DES Year 1 data set designed to replicate the properties of the CMASS sample from BOSS, in support of a joint analysis of DES and BOSS beyond the small overlapping area. ...
  • Brown, Iain Alastair; Hammami, Amir (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2012)
    We consider issues related to the conformal mapping between the Einstein and Jordan frames in f(R) cosmology. We consider the impact of the conformal transformation on the gauge of a perturbed system and show that unless ...
  • Panesar, Navdeep K.; Tiwari, Sanjiv K.; Moore, Ronald L.; Sterling, Alphonse C.; De Pontieu, Bart Walter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract We present the first Mg ii slit-raster spectra from the Interface Region Imaging Spectrograph (IRIS) that fully capture the genesis and coronal-jet-generating eruption of a central-disk solar minifilament. ...
  • Koivisto, Tomi Sebastian; Tamanini, Nicola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    In the first-order formalism of gravitational theories, the spacetime connection is considered as an independent variable to vary together with the metric. However, the metric still generates its Levi-Civita connection ...
  • Gronke, Max Balthasar; Bird, Simeon (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    © 2017. The American Astronomical Society. All rights reserved.
  • Mannucci, F.; Scialpi, M.; Ciurlo, A.; Yeh, S.; Marconcini, C.; Tozzi, G.; Cresci, G.; Marconi, A.; Amiri, A.; Belfiore, F.; Carniani, S.; Cicone, Claudia; Nardini, E.; Pancino, E.; Khatun, Rubinur; Severgnini, P.; Ulivi, L.; Venturi, G.; Vignali, C.; Volonteri, M.; Pinna, E.; Rossi, F.; Puglisi, A.; Agapito, G.; Plantet, C.; Ghose, E.; Carbonaro, L.; Xompero, M.; Grani, P.; Esposito, S.; Power, J.; Guerra Ramon, J.C.; Lefebvre, M.; Cavallaro, A.; Davies, R.; Riccardi, A.; Macintosh, M.; Taylor, W.; Dolci, M.; Baruffolo, A.; Feuchtgruber, H.; Kravchenko, K.; Rau, C.; Sturm, E.; Wiezorrek, E.; Dallilar, Y.; Kenworthy, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The Gaia Multipeak (GMP) technique can be used to identify large numbers of dual or lensed active galactic nucleus (AGN) candidates at subarcsec separation, allowing us to study both multiple supermassive black holes (SMBHs) ...
  • Udnes, Cathrine (Master thesis / Masteroppgave, 2011)
    There have been many reports on anomalies in the CMB from different research groups. In this work statistical tests using the gradients of the CMB temperature, applied to the seven year WMAP data, have been investigated. ...
  • Liu, Lang; Christiansen, Øyvind; Guo, Zong-Kuan; Cai, Rong-Gen; Kim, Sang Pyo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    We derive the equations of motion of dyonic black hole binaries with electric and magnetic charges and explore features of static orbits. By using a Newtonian method with the inclusion of radiation reaction, we calculate ...
  • Liu, Lang; Christiansen, Øyvind; Ruan, Wen-Hong; Guo, Zong-Kuan; Cai, Rong-Gen; Kim, Sang Pyo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract Extending the electromagnetic and gravitational radiations from binary black holes with electric and magnetic charges in circular orbits in Liu et al. (Phys. Rev. D 102:103520, 2020), we calculate the total emission ...
  • Eingorn, Maxim; McLaughlin II, Andrew; Canay, Ezgi; Brilenkov, Maksym; Zhuk, Alexander (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We investigate the influence of the chimney topology T×T×R of the Universe on the gravitational potential and force that are generated by point-like massive bodies. We obtain three distinct expressions for the solutions. ...
  • Rivera-Thorsen, Thøger Emil Juul; Dahle, Håkon; Chisholm, John; Florian, Michael K.; Gronke, Max Balthasar; Rigby, Jane R.; Gladders, Michael D.; Mahler, Guillaume; Sharon, Keren; Bayliss, Matthew B. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    During the epoch of reionization, neutral gas in the early Universe was ionized by hard ultraviolet radiation emitted by young stars in the first galaxies. To do so, ionizing ultraviolet photons must escape from the host ...
  • Kjernsmo, Kjetil (Master thesis / Hovedoppgave, 2002)
    It is believed that the Broad Emission Line Region of Quasars consists of discrete clouds. Due to the suspected small size of a cloud, the radiation from clouds may be strongly amplified by gravitational microlensing. It ...
  • Grönke, Max (Master thesis / Masteroppgave, 2013)
    The gravitational redshift in clusters of galaxies can be measured to probe gravity as was first done by Wojtak et al. (2011). Using N -body simulations we are able to analyze the gravitational redshift profiles for the ...
  • Grönke, Max Balthasar; Llinares, Claudio; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Aims: We investigate the gravitational redshift in clusters of galaxies in the symmetron and Hu-Sawicky f(R) models. The characteristic feature of both models is the screening mechanism that hides the fifth force in dense ...
  • Banerjee, Shreya; Bera, Sayantani; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    The Lambda-Cold Dark Matter (ΛCDM) model agrees with most of the cosmological observations, but has some hindrances from observed data at smaller scales such as galaxies. Recently, Berezhiani and Khoury proposed a new ...
  • Banerjee, S.; Bera, S.; Mota, David (Chapter / Bokkapittel / PublishedVersion; Peer reviewed, 2023)
    The Lambda-Cold Dark Matter (ΛCDM) model agrees with most of the cosmological observations, but has some hindrances from observed data at smaller scales such as galaxies. Recently, Berezhiani and Khoury proposed a new ...