Zobrazeno 1 - 10
of 16
pro vyhledávání: '"David S. Aguado"'
Autor:
Ása Skúladóttir, Ioanna Koutsouridou, Irene Vanni, Anish M. Amarsi, Romain Lucchesi, Stefania Salvadori, David S. Aguado
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 2, p L23 (2024)
The first (Population III) stars formed only out of H and He and were likely more massive than present-day stars. Massive Population III stars in the range 140–260 M _⊙ are predicted to end their lives as pair-instability supernovae (PISNe), enri
Externí odkaz:
https://doaj.org/article/d3bf49c1ab2a430d86827efcb4248de0
Autor:
Carlos Allende Prieto, David S. Aguado, Jonay I. González Hernández, Rafael Rebolo, Joan Najita, Christopher J. Manser, Constance Rockosi, Zachary Slepian, Mar Mezcua, Monica Valluri, Rana Ezzeddine, Sergey E. Koposov, Andrew P. Cooper, Arjun Dey, Boris T. Gänsicke, Ting S. Li, Katia Cunha, Siwei Zou, Jessica Nicole Aguilar, Steven Ahlen, David Brooks, Todd Claybaugh, Shaun Cole, Sarah Eftekharzadeh, Kevin Fanning, Jaime Forero-Romero, Satya Gontcho A Gontcho, Klaus Honscheid, Pascale Jablonka, Robert Kehoe, Theodore Kisner, Martin Landriau, Axel de la Macorra, Aaron Meisner, Ramón Miquel, John Moustakas, Jundan Nie, Claire Poppett, Francisco Prada, Mehdi Rezaie, Graziano Rossi, Eusebio Sánchez, Michael Schubnell, Ray Sharples, Malgorzata Siudek, Verne V. Smith, Gregory Tarlé, Fiorenzo Vincenzo, Benjamin Alan Weaver, Zhimin Zhou, Hu Zou
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 2, p 76 (2023)
The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ∼10, improving the sample statistics to study the early chemical evolution of the Milky
Externí odkaz:
https://doaj.org/article/f8ae4b04a7394e6fa3dcda873efa51aa
Autor:
Callum E C Witten, David S Aguado, Jason L Sanders, Vasily Belokurov, N Wyn Evans, Sergey E Koposov, Carlos Allende Prieto, Francesca De Angeli, Mike J Irwin
Publikováno v:
Witten, C E C, Aguado, D S, Sanders, J L, Belokurov, V, Evans, N W, Koposov, S E, Prieto, C A, Angeli, F D & Irwin, M J 2022, ' Information content of BP/RP spectra in Gaia DR3 ', Monthly Notices of the Royal Astronomical Society, vol. 516, no. 3, pp. 3254-3265 . https://doi.org/10.1093/mnras/stac2273
Gaia Data Release 3 has provided the astronomical community with the largest stellar spectroscopic survey to date ($>$ 220 million sources). The low resolution (R$\sim$50) blue photometer (BP) and red photometer (RP) spectra will allow for the estima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d133ce79c7798d8696d1c1faf4d06d5
https://doi.org/10.1093/mnras/stac2273
https://doi.org/10.1093/mnras/stac2273
Autor:
Raphaël Errani, Julio F Navarro, Rodrigo Ibata, Nicolas Martin, Zhen Yuan, David S Aguado, Piercarlo Bonifacio, Elisabetta Caffau, Jonay I González Hernández, Khyati Malhan, Rubén Sánchez-Janssen, Federico Sestito, Else Starkenburg, Guillaume F Thomas, Kim A Venn
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 514, 3532-3540. Oxford University Press
The recently discovered C-19 stellar stream is a collection of kinematically associated metal-poor stars in the halo of the Milky Way lacking an obvious progenitor. The stream spans an arc of ~15 degrees in the sky, and orbit-fitting suggests an apoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb0f59290c52cf08337b4505979c2189
https://research.rug.nl/en/publications/20b66cbd-12b5-43e1-b867-e33b9afadf55
https://research.rug.nl/en/publications/20b66cbd-12b5-43e1-b867-e33b9afadf55
Autor:
Anke Arentsen, Vinicius M Placco, Young Sun Lee, David S Aguado, Nicolas F Martin, Else Starkenburg, Jinmi Yoon
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 515, 4082-4098. Oxford University Press
Carbon-enhanced metal-poor (CEMP) stars are a unique resource for Galactic archaeology because they probe the properties of the First Stars, early chemical evolution and binary interactions at very low metallicity. Comparing the fractions and propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e85e0550f0724676ce15677a3d4810e
https://doi.org/10.1093/mnras/stac2062
https://doi.org/10.1093/mnras/stac2062
Autor:
Zhen Yuan, Nicolas F Martin, Rodrigo A Ibata, Elisabetta Caffau, Piercarlo Bonifacio, Lyudmila I Mashonkina, Raphaël Errani, Amandine Doliva-Dolinsky, Else Starkenburg, Kim A Venn, Anke Arentsen, David S Aguado, Michele Bellazzini, Benoit Famaey, Morgan Fouesneau, Jonay I González Hernández, Pascale Jablonka, Carmela Lardo, Khyati Malhan, Julio F Navarro, Rubén Sánchez Janssen, Federico Sestito, Guillaume F Thomas, Akshara Viswanathan, Sara Vitali
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 514, 1664-1671. Oxford University Press
The C-19 stream is the most metal poor stellar system ever discovered, with a mean metallicity $[Fe/H] = -3.38\pm0.06$. Its low metallicity dispersion ($\sigma_{\rm [Fe/H]}$ $
Comment: 7 pages, 6 figures, accepted to MNRAS. The C-19 member list
Comment: 7 pages, 6 figures, accepted to MNRAS. The C-19 member list
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fedb0b2e27c71f16c1dc61f4ea781887
https://doi.org/10.1093/mnras/stac1399
https://doi.org/10.1093/mnras/stac1399
Autor:
Anke Arentsen, David S Aguado, Federico Sestito, Jonay I González Hernández, Nicolas F Martin, Else Starkenburg, Pascale Jablonka, Zhen Yuan
Ultra metal-poor stars ([Fe/H] < -4.0) are very rare, and finding them is a challenging task. Both narrow-band photometry and low-resolution spectroscopy have been useful tools for identifying candidates, and in this work we combine both approaches.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa753a23e072bfe7383eb3f55d3dc837
Autor:
Shoko Jin, Scott C Trager, Gavin B Dalton, J Alfonso L Aguerri, J E Drew, Jesús Falcón-Barroso, Boris T Gänsicke, Vanessa Hill, Angela Iovino, Matthew M Pieri, Bianca M Poggianti, D J B Smith, Antonella Vallenari, Don Carlos Abrams, David S Aguado, Teresa Antoja, Alfonso Aragón-Salamanca, Yago Ascasibar, Carine Babusiaux, Marc Balcells, R Barrena, Giuseppina Battaglia, Vasily Belokurov, Thomas Bensby, Piercarlo Bonifacio, Angela Bragaglia, Esperanza Carrasco, Ricardo Carrera, Daniel J Cornwell, Lilian Domínguez-Palmero, Kenneth J Duncan, Benoit Famaey, Cecilia Fari na, Oscar A Gonzalez, Steve Guest, Nina A Hatch, Kelley M Hess, Matthew J Hoskin, Mike Irwin, Johan H Knapen, Sergey E Koposov, Ulrike Kuchner, Clotilde Laigle, Jim Lewis, Marcella Longhetti, Sara Lucatello, Jairo Méndez-Abreu, Amata Mercurio, Alireza Molaeinezhad, Maria Monguió, Sean Morrison, David N A Murphy, Luis Peralta de Arriba, Isabel Pérez, Ignasi Pérez-Ràfols, Sergio Picó, Roberto Raddi, Mercè Romero-Gómez, Frédéric Royer, Arnaud Siebert, George M Seabroke, Debopam Som, David Terrett, Guillaume Thomas, Roger Wesson, C Clare Worley, Emilio J Alfaro, Carlos Allende Prieto, Javier Alonso-Santiago, Nicholas J Amos, Richard P Ashley, Lola Balaguer-Nú nez, Eduardo Balbinot, Michele Bellazzini, Chris R Benn, Sara R Berlanas, Edouard J Bernard, Philip Best, Daniela Bettoni, Andrea Bianco, Georgia Bishop, Michael Blomqvist, Corrado Boeche, Micol Bolzonella, Silvia Bonoli, Albert Bosma, Nikolay Britavskiy, Gianni Busarello, Elisabetta Caffau, Tristan Cantat-Gaudin, Alfred Castro-Ginard, Guilherme Couto, Juan Carbajo-Hijarrubia, David Carter, Laia Casamiquela, Ana M Conrado, Pablo Corcho-Caballero, Luca Costantin, Alis Deason, Abel de Burgos, Sabrina De Grandi, Paola Di Matteo, Jesús Domínguez-Gómez, Ricardo Dorda, Alyssa Drake, Rajeshwari Dutta, Denis Erkal, Sofia Feltzing, Anna Ferré-Mateu, Diane Feuillet, Francesca Figueras, Matteo Fossati, Elena Franciosini, Antonio Frasca, Michele Fumagalli, Anna Gallazzi, Rubén García-Benito, Nicola Gentile Fusillo, Marwan Gebran, James Gilbert, T M Gledhill, Rosa M González Delgado, Robert Greimel, Mario Giuseppe Guarcello, Jose Guerra, Marco Gullieuszik, Christopher P Haines, Martin J Hardcastle, Amy Harris, Misha Haywood, Amina Helmi, Nauzet Hernandez, Artemio Herrero, Sarah Hughes, Vid Irsic, Pascale Jablonka, Matt J Jarvis, Carme Jordi, Rohit Kondapally, Georges Kordopatis, Jens-Kristian Krogager, Francesco La Barbera, Man I Lam, Søren S Larsen, Bertrand Lemasle, Ian J Lewis, Emilie Lhomé, Karin Lind, Marcello Lodi, Alessia Longobardi, Ilaria Lonoce, Laura Magrini, Jesús Maíz Apellániz, Olivier Marchal, Amparo Marco, Nicolas F Martin, Tadafumi Matsuno, Sophie Maurogordato, Paola Merluzzi, Jordi Miralda-Escudé, Emilio Molinari, Giacomo Monari, Lorenzo Morelli, Christopher J Mottram, Tim Naylor, Ignacio Negueruela, Jose Onorbe, Elena Pancino, Sébastien Peirani, Reynier F Peletier, Lucia Pozzetti, Monica Rainer, Pau Ramos, Shaun C Read, Elena Maria Rossi, Huub J A Röttgering, Jose Alberto Rubi no-Martín, Jose Sabater Montes, José San Juan, Nicoletta Sanna, Ellen Schallig, Ricardo P Schiavon, Mathias Schultheis, Paolo Serra, Timothy W Shimwell, Sergio Simón-Díaz, Russell J Smith, Rosanna Sordo, Daniele Sorini, Caroline Soubiran, Else Starkenburg, Iain A Steele, John Stott, Remko Stuik, Eline Tolstoy, Crescenzo Tortora, Maria Tsantaki, Mathieu Van der Swaelmen, Reinout J van Weeren, Daniela Vergani, Marc A W Verheijen, Kristiina Verro, Jorick S Vink, Miguel Vioque, C Jakob Walcher, Nicholas A Walton, Christopher Wegg, Anne-Marie Weijmans, Wendy L Williams, Andrew J Wilson, Nicholas J Wright, Theodora Xylakis-Dornbusch, Kris Youakim, Stefano Zibetti, Cristina Zurita
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2023, ⟨10.1093/mnras/stad557⟩
Monthly Notices of the Royal Astronomical Society, 2023, ⟨10.1093/mnras/stad557⟩
WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, will see first light in late 2022. WEAVE comprises a new 2-degree field-of-view prime-focus corrector system, a nearly 1000-multiplex f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e703a657cd480f114b6f6cbe52ae052
https://hal-insu.archives-ouvertes.fr/insu-04040492
https://hal-insu.archives-ouvertes.fr/insu-04040492
Autor:
Nicolas F. Martin, Kim A. Venn, David S. Aguado, Else Starkenburg, Jonay I. González Hernández, Rodrigo A. Ibata, Piercarlo Bonifacio, Elisabetta Caffau, Federico Sestito, Anke Arentsen, Carlos Allende Prieto, Raymond G. Carlberg, Sébastien Fabbro, Morgan Fouesneau, Vanessa Hill, Pascale Jablonka, Georges Kordopatis, Carmela Lardo, Khyati Malhan, Lyudmila I. Mashonkina, Alan W. McConnachie, Julio F. Navarro, Rubén Sánchez-Janssen, Guillaume F. Thomas, Zhen Yuan, Alessio Mucciarelli
Publikováno v:
Nature, 601(7891), 45-48. Nature Publishing Group
Stellar ejecta gradually enrich the gas out of which subsequent stars form, making the least chemically enriched stellar systems direct fossils of structures formed in the early universe. Although a few hundred stars with metal content below one thou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fff3657d91dd74f503505ded2e116e0
Autor:
Sara Vitali, Anke Arentsen, Else Starkenburg, Paula Jofré, Nicolas F Martin, David S Aguado, Raymond Carlberg, Jonay I González Hernández, Rodrigo Ibata, Georges Kordopatis, Khyati Malhan, Pau Ramos, Federico Sestito, Zhen Yuan, Sven Buder, Geraint F Lewis, Zhen Wan, Daniel B Zucker
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 517(4), 6121-6139. Oxford University Press
We present a comprehensive metallicity analysis of the Sagittarius dwarf spheroidal galaxy (Sgr dSph) using $Pristine\,CaHK$ photometry. We base our member selection on $Gaia$ EDR3 astrometry applying a magnitude limit at $G_{0} = 17.3$, and our popu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae6360c0af2b033d3c4089716ce1ec8c