Zobrazeno 1 - 10
of 118
pro vyhledávání: '"ST/N000668/1"'
Autor:
Brett H. Andrews, Taniya Parikh, Daniel Thomas, Claudia Maraston, Nicholas Fraser Boardman, Niv Drory, Grecco A. Oyarzún, Kyle B. Westfall
Publikováno v:
Parikh, T, Thomas, D, Maraston, C, Westfall, K B, Andrews, B H, Boardman, N F, Drory, N & Oyarzun, G 2021, ' SDSS-IV MaNGA: radial gradients in stellar population properties of early-type and late-type galaxies ', Monthly Notices of the Royal Astronomical Society, vol. 502, no. 4, pp. 5508-5527 . https://doi.org/10.1093/mnras/stab449
We derive ages, metallicities, and individual element abundances of early- and late-type galaxies (ETGs and LTGs) out to 1.5 R$_e$. We study a large sample of 1900 galaxies spanning $8.6 - 11.3 \log M/M_{\odot}$ in stellar mass, through key absorptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::565984dc97a0331d3c8dacd1968e3578
https://doi.org/10.1093/mnras/stab449
https://doi.org/10.1093/mnras/stab449
The age–chemical abundance structure of the Galactic disc – II. α-dichotomy and thick disc formation
Autor:
Jianhui Lian, D. A. García-Hernández, José G. Fernández-Trincado, Claudia Maraston, Christian Moni Bidin, Timothy C. Beers, Alexandre Roman-Lopes, Ricardo R. Muñoz, Christian Nitschelm, Olga Zamora, Rebecca Lane, Daniel Thomas
Publikováno v:
Lian, J, Thomas, D, Maraston, C, Beers, T C, Bidin, C M, Fernández-Trincado, J G, García-Hernández, D A, Lane, R R, Munoz, R R, Nitschelm, C, Roman-Lopes, A & Zamora, O 2020, ' The age-chemical abundance structure of the Galactic disc II. α-dichotomy and thick disc formation ', Monthly Notices of the Royal Astronomical Society, vol. 497, no. 2, pp. 2371-2384 . https://doi.org/10.1093/mnras/staa2078
We extend our previous work on the age-chemical abundance structure of the Galactic outer disc to the inner disc (4 < r < 8 kpc) based on the SDSS/APOGEE survey. Different from the outer disc, the inner disc stars exhibit a clear bimodal distribution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::090aa125102cd408f8779d454a455acd
https://doi.org/10.1093/mnras/staa2078
https://doi.org/10.1093/mnras/staa2078
Publikováno v:
Cunnington, S, Pourtsidou, A, Soares, P S, Blake, C & Bacon, D 2020, ' Multipole expansion for HI intensity mapping experiments: simulations and modelling ', Monthly Notices of the Royal Astronomical Society, vol. 496, no. 1, pp. 415-433 . https://doi.org/10.1093/mnras/staa1524
We present a framework and an open-source python toolkit to analyse the 2-point statistics of 3D fluctuations in the context of HI intensity maps using the multipole expansion formalism. We include simulations of the cosmological HI signal using N-bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e1e2d3d6d4f92bfd1bfbc9fea875c9e
https://doi.org/10.1093/mnras/staa1524
https://doi.org/10.1093/mnras/staa1524
Autor:
F. J. Castander, Geraint F. Lewis, W. G. Hartley, Alex Drlica-Wagner, T. M. C. Abbott, C. B. D'Andrea, Tesla E. Jeltema, Dragan Huterer, E. J. Sanchez, D. A. Finley, M. Carrasco Kind, Tenglin Li, Santiago Avila, Carlos E. Cunha, Robert C. Nichol, N. E. Sommer, Vinu Vikram, J. Carretero, Santiago González-Gaitán, R. H. Schindler, K. Bechtol, Tamara M. Davis, E. Swann, D. L. Burke, A. Carnero Rosell, Samuel Hinton, Ben Hoyle, J. Annis, Edward Macaulay, David Brooks, M. E. C. Swanson, Peter Nugent, Martin Crocce, G. Gutierrez, Daniel Thomas, Mark Sullivan, Joshua A. Frieman, P. Wiseman, E. Suchyta, August E. Evrard, Antonella Palmese, Ryan J. Foley, N. Kuropatkin, Daniel Scolnic, A. G. Kim, V. Scarpine, S. Allam, Robert A. Gruendl, E. Kasai, R. C. Thomas, M. A. G. Maia, Mathew Smith, C. Lidman, Peter de Nully Brown, Alistair R. Walker, Lluís Galbany, D. Brout, Jacobo Asorey, S. Serrano, Marcelle Soares-Santos, Jennifer L. Marshall, Enrique Gaztanaga, L. N. da Costa, Rob Sharp, M. Sako, Brad E. Tucker, J. Calcino, David J. James, Daniela Carollo, Bruce A. Bassett, D. L. Hollowood, Anais Möller, A. A. Plazas, Pablo Fosalba, Bonnie Zhang, Richard Kessler, Bhuvnesh Jain, J. De Vicente, K. Honscheid, S. A. Uddin, Karl Glazebrook, Marcos Lima, Flavia Sobreira, M. S. Schubnell, Ofer Lahav, I. Sevilla-Noarbe, J. Lasker, Juan Garcia-Bellido, A. Roodman, Juan Estrada, B. Flaugher, H. T. Diehl, C. Davis, Kyler Kuehn, Daniel Gruen, David Bacon, Alexei V. Filippenko, J. Gschwend, Gregory Tarle, P. Martini, Tim Eifler, Elisabeth Krause, Ramon Miquel, P. Doel, Thomas E. Collett, Huan Lin, J. K. Hoormann, A. K. Romer, Yen-Chen Pan
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Dark Energy Survey Collaboration, Macaulay, E, Nichol, R C, Bacon, D, D'Andrea, C B, Avila, S, Collett, T, Swann, E & Thomas, D 2019, ' First cosmological results using type Ia supernovae from the Dark Energy Survey : measurement of the Hubble Constant ', Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2, pp. 2184–2196 . https://doi.org/10.1093/mnras/stz978
Universidade de São Paulo (USP)
instacron:USP
Dark Energy Survey Collaboration, Macaulay, E, Nichol, R C, Bacon, D, D'Andrea, C B, Avila, S, Collett, T, Swann, E & Thomas, D 2019, ' First cosmological results using type Ia supernovae from the Dark Energy Survey : measurement of the Hubble Constant ', Monthly Notices of the Royal Astronomical Society, vol. 486, no. 2, pp. 2184–2196 . https://doi.org/10.1093/mnras/stz978
We present an improved measurement of the Hubble constant (H_0) using the 'inverse distance ladder' method, which adds the information from 207 Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) at redshift 0.018 < z < 0.85 to existing dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69c303ee758a209e5ebba06e45800a32
https://doi.org/10.1093/mnras/stz978
https://doi.org/10.1093/mnras/stz978
Publikováno v:
Wang, S, Percival, W J, Avila, S, Crittenden, R & Bianchi, D 2019, ' Cosmological inference from galaxy-clustering power spectrum : Gaussianization and covariance decomposition ', Monthly Notices of the Royal Astronomical Society, vol. 486, no. 1, pp. 951-965 . https://doi.org/10.1093/mnras/stz829
Likelihood fitting to two-point clustering statistics made from galaxy surveys usually assumes a multivariate normal distribution for the measurements, with justification based on the central limit theorem given the large number of overdensity modes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad76f0822473e4ffb74b3b6faf439945
https://doi.org/10.1093/mnras/stz829
https://doi.org/10.1093/mnras/stz829
Autor:
Mario Ballardini, Jose Alberto Rubino-Martin, José Ramón Bermejo-Climent, Daniela Paoletti, Fabio Finelli, Roy Maartens, Luca Valenziano
Publikováno v:
Bermejo-Climent, J R, Ballardini, M, Finelli, F, Paoletti, D, Maartens, R, Rubiño-Martín, J A & Valenziano, L 2021, ' Cosmological parameter forecasts by a joint 2D tomographic approach to CMB and galaxy clustering ', Physical Review D, vol. 103, no. 10, 103502 . https://doi.org/10.1103/PhysRevD.103.103502
The cross-correlation between the cosmic microwave background (CMB) fields and matter tracers carries important cosmological information. In this paper, we forecast by a signal-to-noise ratio analysis the information contained in the cross-correlatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d0a8d4eefc14a523855e8a7e5b7954d
Autor:
Nitesh Bhardwaj, Dominik J. Schwarz, J. Sabater, Glenn J. White, Matt J. Jarvis, Wendy L. Williams, David Bacon, Huub Röttgering, C. L. Hale, Marian Biermann, Timothy W. Shimwell, C. Tasse, Philip Best, Martin J. Hardcastle, Kenneth Duncan, Thilo M. Siewert
Publikováno v:
Astronomy & Astrophysics, 643, A100
Siewert, T M, Hale, C, Bhardwaj, N, Biermann, M, Bacon, D J, Jarvis, M, Röttgering, H J A, Schwarz, D J, Shimwell, T, Best, P N, Duncan, K J, Hardcastle, M J, Sabater, J, Tasse, C, White, G J & Williams, W L 2020, ' One-and two-point source statistics from the LOFAR Two-metre Sky Survey first data release ', Astronomy and Astrophysics, vol. 643, A100 . https://doi.org/10.1051/0004-6361/201936592
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 643, pp.A100. ⟨10.1051/0004-6361/201936592⟩
Siewert, T M, Hale, C, Bhardwaj, N, Biermann, M, Bacon, D J, Jarvis, M, Röttgering, H J A, Schwarz, D J, Shimwell, T, Best, P N, Duncan, K J, Hardcastle, M J, Sabater, J, Tasse, C, White, G J & Williams, W L 2020, ' One-and two-point source statistics from the LOFAR Two-metre Sky Survey first data release ', Astronomy and Astrophysics, vol. 643, A100 . https://doi.org/10.1051/0004-6361/201936592
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 643, pp.A100. ⟨10.1051/0004-6361/201936592⟩
The LOFAR Two-metre Sky Survey (LoTSS) will map the complete Northern sky and provide an excellent opportunity to study the distribution and evolution of the large-scale structure of the Universe. We study the completeness of the LoTSS first data rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::759bbfae9988bdb8aa71ed0c8afc12f3
http://hdl.handle.net/1887/3133846
http://hdl.handle.net/1887/3133846
Autor:
Anais Möller, E. Bertin, A. K. Romer, Samuel Hinton, J. Gschwend, G. Gutierrez, A. Roodman, David J. Brooks, Sunayana Bhargava, T. N. Varga, Peter Doel, M. Smith, H. T. Diehl, Ramon Miquel, David Bacon, Ofer Lahav, Jennifer L. Marshall, Daniel Gruen, Jack Elvin-Poole, David J. James, Marcelle Soares-Santos, Kyler Kuehn, Ryan J. Foley, Geraint F. Lewis, Daniel Scolnic, D. L. Burke, A. Carnero Rosell, A. R. Walker, G. Tarle, M. E. C. Swanson, Juan Garcia-Bellido, Dragan Huterer, V. Scarpine, E. Suchyta, B. Flaugher, Robert A. Gruendl, Karl Glazebrook, Felipe Menanteau, J. Annis, Daniela Carollo, M. Sako, D. W. Gerdes, Peter Melchior, C. Lidman, B. E. Tucker, D. L. Hollowood, J. Carretero, Michael Schubnell, Tamara M. Davis, S. Desai, Michel Aguena, K. Honscheid, S. Serrano, M. Costanzi, I. Sevilla-Noarbe, N. Kuropatkin, L. N. da Costa, Antonella Palmese, M. A. G. Maia, Salcedo Romero de Ávila, Jochen Weller, Marcos Lima, F. J. Castander, T. M. C. Abbott, E. J. Sanchez, Edward Macaulay, A. A. Plazas, N. E. Sommer, D. J. Brout, M. Carrasco Kind, Robert C. Nichol, Enrique Gaztanaga
Publikováno v:
DES Collaboration, Macaulay, E, Bacon, D, Nichol, R C & Avila, S 2020, ' Weak lensing of Type Ia Supernovae from the Dark Energy Survey ', Monthly Notices of the Royal Astronomical Society, vol. 496, no. 3, pp. 4051-4059 . https://doi.org/10.1093/mnras/staa1852
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 496 (3), pp.4051-4059. ⟨10.1093/mnras/staa1852⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 496 (3), pp.4051-4059. ⟨10.1093/mnras/staa1852⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 496 (3), pp.4051-4059. ⟨10.1093/mnras/staa1852⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 496 (3), pp.4051-4059. ⟨10.1093/mnras/staa1852⟩
We consider the effects of weak gravitational lensing on observations of 196 spectroscopically confirmed Type Ia Supernovae (SNe Ia) from years 1 to 3 of the Dark Energy Survey (DES). We simultaneously measure both the angular correlation function an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::380690da0f70372621b52a9d016d4969
https://researchportal.port.ac.uk/portal/en/publications/weak-lensing-of-type-ia-supernovae-from-the-dark-energy-survey(f5a0b768-9046-44f1-8dc8-e97f78ac3d8e).html
https://researchportal.port.ac.uk/portal/en/publications/weak-lensing-of-type-ia-supernovae-from-the-dark-energy-survey(f5a0b768-9046-44f1-8dc8-e97f78ac3d8e).html
Autor:
Obinna Umeh, Eline M. De Weerd, Sheean Jolicoeur, Roy Maartens, Chris Clarkson, Stefano Camera
Publikováno v:
Maartens, R, Jolicoeur, S, Umeh, O, Weerd, E M D, Clarkson, C & Camera, S 2020, ' Detecting the relativistic galaxy bispectrum ', Journal of Cosmology and Astroparticle Physics, vol. 2020, no. 03, 065 . https://doi.org/10.1088/1475-7516/2020/03/065
The Fourier-space galaxy bispectrum is complex, with the imaginary part arising from leading-order relativistic corrections, due to Doppler, gravitational redshift and related line-of-sight effects in redshift space. The detection of the imaginary pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c99565138f7e4a8ee40172a248619036
https://researchportal.port.ac.uk/ws/files/19876536/1911.02398v3.pdf
https://researchportal.port.ac.uk/ws/files/19876536/1911.02398v3.pdf
Publikováno v:
Hikage, C, Koyama, K & Takahashi, R 2020, ' Perturbation theory for the redshift-space matter power spectra after reconstruction ', Physical Review D-Particles, Fields, Gravitation and Cosmology, vol. 101, no. 4, 043510 . https://doi.org/10.1103/PhysRevD.101.043510
Physical Review D
Physical Review D
We derive the one-loop perturbative formula of the redshift-space matter power spectrum after density field reconstruction in the Zeldovich approximation. We find that the reconstruction reduces the amplitudes of nonlinear one-loop perturbative terms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a699a87060ae88f60bec143399a9bc4b
https://doi.org/10.1103/physrevd.101.043510
https://doi.org/10.1103/physrevd.101.043510