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Institut de Ciències del Cosmos (ICCUB): Envíos recientes

Mostrando ítems 1-20 de 1020

    Superfluid rings as quantum pendulums 

    Muñoz Mateo, Antonio; Astrakharchik, Grigory E.; Juliá-Díaz, Bruno (2025-07-16)

    A nondispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatomic interactions, loaded into a tilted ring potential. The classical and quantum domains ...

    Using clustering for disperse objects fields segmentation in MIRADAS instrument 

    Sabater, Josep; Torres Álvarez, Santiago; Garzón López, Francisco; Gómez Cama, José María (2025-10-13)

    Mid-resolution InfRAreD Astronomical Spectrograph (MIRADAS) is a near-infrared multi-object spectrograph for Gran Telescopio Canarias (GTC). It has 12 deployable Integral Field Units (IFU) based on probe arms with pick-off ...

    Spectroscopic age estimates for APOGEE red-giant stars: Precise spatial and kinematic trends with age in the Galactic disc 

    Anders, Friedrich; Gispert, P.; Ratcliffe, Bridget; Chiappini, C.; Minchev, I.; Nepal, Samir; Queiroz, A. B. A.; Amarante, João Antônio Silveira do; Antoja Castelltort, M. Teresa; Casali, Giada; Casamiquela, L.; Khalatyan, A.; Miglio, A.; Perottoni, Helio; Schultheis, M. (2025-07-22)

    Over the last few years, many studies have found an empirical relationship between the abundance of a star and its age. Here we estimate spectroscopic stellar ages for 178 825 red-giant stars observed by the APOGEE survey ...

    Anomalous quantum transport in fractal lattices 

    Rojo Francàs, Abel; Pansari, Priyanshu; Bhattacharya, Utso; Juliá-Díaz, Bruno; Grass, Tobias (2025-07-14)

    Fractal lattices are self-similar structures with repeated patterns on different scales. Quantum transport through such structures is subtle due to the possible co-existence of localized and extended states. Here, we study ...

    C60 fullerene as an on-demand single photon source at room temperature 

    Lahoz Sanz, Raul; Lozano Martín, Lidia; Brú Cortés, Adrià; Hernández Márquez, Sergi; Duocastella, Martí; Gómez Cama, José María; Juliá-Díaz, Bruno (2025-10-13)

    Single photon sources are fundamental for applications in quantum computing, secure communication, and sensing, as they enable the generation of individual photons and ensure strict control over photon number statistics. ...

    Gaia's Cepheids and RR Lyrae stars and luminosity calibrations based on Tycho-Gaia Astrometric Solution 

    Clementini, Gisella; Eyer, Laurent; Muraveva, Tatiana; Garofalo, A.; Ripepi, Vincenzo; Marconi, Marcella; Sarro, Luis M.; Palmer, Max; Luri Carrascoso, Xavier; Molinaro, Roberto; Rimoldini, Lorenzo; Szabados, Laszlo; Anderson, Richard I.; Musella, Ilaria (2025-10-13)

    Gaia Data Release 1 contains parallaxes for more than 700 Galactic Cepheids and RR Lyrae stars, computed as part of the Tycho-Gaia Astrometric Solution (TGAS). We have used TGAS parallaxes, along with literature (V, I, J, ...

    Statistical detection of tidal streams generated by globular clusters and their application to measure the axis ratio of the Milky Way dark matter halo 

    Garcia Palau, Carles (2022-09-30)

    [eng] In this thesis we have presented a new method to search for tidal streams generated by globular clusters in the Gaia catalogue. This statistical method is based on the maximum likelihood technique to distinguish ...

    Enhancing the detection of low-energy M dwarf flares: wavelet-based denoising of CHEOPS data 

    Poyatos, Julien; Fors Aldrich, Octavi; Gómez Cama, José María; Ribas Canudas, Ignasi (2025-11-06)

    Stellar flares are powerful bursts of electromagnetic radiation triggered by magnetic reconnection in the chromosphere of stars, occurring frequently and intensely on active M dwarfs. While missions like TESS and Kepler ...

    New high-sensitivity, milliarcsecond resolution results from routine observations of lunar occultations at the ESO VLT 

    Richichi, A.; Fors Aldrich, Octavi; Chen, W. -P.; Mason, E. (2025-07-11)

    Context. Lunar occultations (LO) are a very efficient and powerful technique that achieves the best combination of high angular resolution and sensitivity possible today at near-infrared wavelengths. Given that the events ...

    Two waves of massive stars running away from the young cluster R136 

    Stoop, Mitchel; Koter, Alex de; Kaper, Lex; Brands, Sarah; Portegies Zwart, Simon; Sana, Hugues; Stoppa, Fiorenzo; Gieles, Mark; Mahy, Laurent; Shenar ,Tomer; Guo, Difeng; Nelemans, Gijs; Rieder, Steven (2025-07-10)

    Massive stars are predominantly born in stellar associations or clusters [1]. The irradiation fields, stellar winds, and supernovae strongly impact their local environment. In the first few million years of a cluster’s ...

    Nine lensed quasars and quasar pairs discovered through spatially extended variability in Pan-STARRS 

    Dux, F.; Lemon, C.; Courbin, Frédéric; Neira, Favio; Anguita, Timo; Galan, A.; Kim, Sam; Hempel, Maren; Hempel, Angela; Lachaume, Régis (2025-05-20)

    We present the proof of concept of a method for finding strongly lensed quasars using their spatially extended photometric variability through difference imaging in cadenced imaging survey data. We applied the method to ...

    Image Deconvolution and Point-spread Function Reconstruction with STARRED: A Wavelet-based Two-channel Method Optimized for Light-curve Extraction 

    Millon, M.; Michalewicz, Kevin; Dux, F.; Courbin, Frédéric; Marshall, P.J. (2025-05-19)

    We present STARRED, a point-spread function (PSF) reconstruction, two-channel deconvolution, and light-curve extraction method designed for high-precision photometric measurements in imaging time series. An improved ...

    Ground-based image deconvolution with Swin Transformer UNet 

    Akhaury, Utsav; Jablonka, Pascale; Starck, J.-L.; Courbin, Frédéric (2025-05-19)

    Aims. As ground-based all-sky astronomical surveys will gather millions of images in the coming years, a critical requirement emerges for the development of fast deconvolution algorithms capable of efficiently improving ...

    Euclid preparation: L. Calibration of the halo linear bias in Λ(v)CDM cosmologies 

    Castro, T.; Fumagalli, A.; Angulo, R.E.; Bocquet, S.; Borgani, S.; Costanzi, M.; Dakin, J.; Dolag, K.; Monaco, P.; Saro, A.; Sefusatti, E.; Aghanim, N.; Amendola, L.; Andreon, S.; Baccigalupi, C.; Baldi, M.; Bodendorf, C.; Bonino, D.; Branchini, E.; Brescia, M.; Caillat, A.; Camera, S.; Capobianco, V.; Carbone, C.; Carretero, J.; Casas, S.; Castellano, M.; Castignani, G.; Cavuoti, S.; Cimatti, A.; Colodro-Conde, C.; Congedo, G.; Conselice, C.J.; Conversi, L.; Copin, Y.; Costille, A.; Courbin, Frederic; Courtois, H.M.; Da Silva, A.; Degaudenzi, H.; De Lucia, G.; Di Giorgio, A.M.; Douspis, M.; Dupac, X.; Dusini, S.; Farina, M.; Farrens, S.; Ferriol, S.; Fosalba, Pablo; Frailis, M.; Franceschi, E.; Fumana, M.; Galeotta, S.; Gillis, B.; Giocoli, C.; Gómez-Alvarez, P.; Grazian, A.; Grupp, F.; Guzzo, L.; Haugan, S.V.H.; Holmes, W.; Hormuth, F.; Hornstrup, A.; Ilić, S.; Jahnke, K.; Jhabvala, M.; Joachimi, B.; Keihänen, E.; Kermiche, S.; Kiessling, A.; Kilbinger, M.; Kubik, B.; Kunz, M.; Kurki-Suonio, H.; Lilje, P.B.; Lindholm, V.; Lloro, I.; Maiorano, E.; Mansutti, O.; Marggraf, O.; Markovic, K.; Martinelli, M.; Martinet, N.; Marulli, F.; Massey, R.; Maurogordato, S.; Medinaceli, E.; Melchior, M.; Mellier, Y.; Meneghetti, M.; Merlin, E.; Meylan, G.; Moscardini, L.; Munari, E.; Niemi, S.-M.; Padilla, C.; Paltani, S.; Pasian, F.; Pedersen, K.; Percival, W.J.; Pettorino, V.; Pires, S.; Polenta, G.; Poncet, M.; Popa, L.A.; Pozzetti, L.; Raison, F.; Renzi, A.; Riccio, G.; Romelli, E.; Roncarelli, M.; Saglia, R.; Sakr, Z.; Salvignol, J.-C.; Sánchez, A.G.; Sapone, D.; Sartoris, B.; Schirmer, M.; Secroun, A.; Serrano, Susana; Sirignano, C.; Sirri, G.; Stanco, L.; Steinwagner, J.; Tallada-Crespí, P.; Taylor, A.N.; Tereno, I.; Toledo-Moreo, R.; Torradeflot, F.; Tutusaus, I.; Valenziano, L.; Vassallo, T.; Verdoes Kleijn, G.; Wang, Yan; Weller, J.; Zacchei, A.; Zamorani, G.; Zucca, E.; Biviano, A.; Bolzonella, M.; Bozzo, E.; Burigana, C.; Calabrese, M.; Di Ferdinando, D.; Escartin Vigo, J.A.; Finelli, F.; Gracia-Carpio, J.; Matthew, S.; Mauri, Nuria; Pezzotta, A.; Pöntinen, M.; Porciani, C.; Scottez, V.; Tenti, M.; Viel, M.; Wiesmann, M.; Akrami, Y.; Allevato, V.; Anselmi, S.; Archidiacono, M.; Atrio-Barandela, F.; Balaguera-Antolinez, A.; Ballardini, M.; Bertacca, D.; Bethermin, M.; Blanchard, A.; Blot, L.; Böhringer, H.; Bruton, S.; Cabanac, R.; Calabro, A.; Cañas-Herrera, G.; Cappi, A.; Caro, F.; Carvalho, C.S.; Chambers, K.C.; Cooray, A.R.; De Caro, B.; De La Torre, S.; Desprez, G.; Díaz-Sánchez, A.; Diaz, J.J.; Di Domizio, S.; Dole, H.; Escoffier, S.; Ferrari, A.G.; Ferreira, P.G.; Ferrero, I.; Finoguenov, A.; Fontana, Alessandra; Fornari, F.; Gabarra, L.; Ganga, K.; García-Bellido, J.; Gasparetto, T.; Gautard, V.; Gaztanaga, E.; Giacomini, F.; Gianotti, F.; Gozaliasl, G.; Gutierrez, C.M.; Hall, A.; Hildebrandt, H.; Hjorth, J.; Jimenez Muñoz, A.; Kajava, J.J.E.; Kansal, V.; Karagiannis, D.; Kirkpatrick, C.C.; Le Brun, A.M.C.; Le Graet, J.; Legrand, L.; Lesgourgues, J.; Liaudat, T.I.; Loureiro, Ana; Maggio, G.; Magliocchetti, M.; Mannucci, F.; Maoli, R.; Martins, C.J.A.P.; Maurin, L.; Metcalf, R.B.; Miluzio, M.; Montoro, A.; Mora, A.; Moretti, C.; Morgante, G.; Nadathur, S.; Walton, N.A.; Pagano, L.; Patrizii, L.; Popa, V.; Potter, D.; Risso, I.; Rocci, P.-F.; Sahlén, M.; Sarpa, E.; Schneider, A.; Sereno, M.; Spurio Mancini, A.; Stadel, J.; Tanidis, K.; Tao, Chuanyuan; Tessore, N.; Testera, G.; Teyssier, R.; Toft, Søren; Tosi, S.; Troja, A.; Tucci, M.; Valieri, C.; Valiviita, J.; Vergani, D.; Verza, G.; Vielzeuf, P. (2025-05-13)

    The Euclid mission, designed to map the geometry of the dark Universe, presents an unprecedented opportunity for advancing our understanding of the cosmos through its photometric galaxy cluster survey. Central to this ...

    Euclid preparation XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses 

    Lesci, G.F.; Sereno, M.; Radovich, M.; Castignani, G.; Bisigello, Laura; Marulli, F.; Moscardini, L.; Baumont, L.; Covone, G.; Farrens, S.; Giocoli, C.; Ingoglia, L.; Miranda La Hera, S.; Vannier, M.; Biviano, A.; Maurogordato, S.; Aghanim, N.; Amara, A.; Andreon, S.; Auricchio, N.; Baldi, M.; Bardelli, S.; Bender, R.; Bodendorf, C.; Bonino, D.; Branchini, E.; Brescia, M.; Brinchmann, J.; Camera, S.; Capobianco, V.; Carbone, C.; Carretero, J.; Casas, S.; Castander, F.J.; Castellano, M.; Cavuoti, S.; Cimatti, A.; Congedo, G.; Conselice, C.J.; Conversi, L.; Copin, Y.; Corcione, L.; Courbin, Frederic; Courtois, H.M.; Da Silva, A.; Degaudenzi, H.; Di Giorgio, A.M.; Dinis, J.; Dubath, F.; Duncan, C.A.J.; Dupac, X.; Dusini, S.; Farina, M.; Ferriol, S.; Fosalba, Pablo; Fotopoulou, S.; Frailis, M.; Franceschi, E.; Franzetti, P.; Fumana, M.; Galeotta, S.; Garilli, B.; Gillis, B.; Grazian, A.; Grupp, F.; Haugan, S.V.H.; Hook, I.; Hormuth, F.; Hornstrup, A.; Hudelot, P.; Jahnke, K.; Kümmel, M.; Kermiche, S.; Kiessling, A.; Kilbinger, M.; Kubik, B.; Kunz, M.; Kurki-Suonio, H.; Ligori, S.; Lilje, P.B.; Lindholm, V.; Lloro, I.; Maiorano, E.; Mansutti, O.; Marggraf, O.; Markovic, K.; Martinet, N.; Massey, R.; Medinaceli, E.; Melchior, M.; Mellier, Y.; Meneghetti, M.; Merlin, E.; Meylan, G.; Moresco, M.; Munari, E.; Nakajima, R.; Niemi, S.-M.; Padilla, C.; Paltani, S.; Pasian, F.; Pedersen, K.; Pettorino, V.; Pires, S.; Polenta, G.; Poncet, M.; Popa, L.A.; Pozzetti, L.; Raison, F.; Rebolo, R.; Renzi, A.; Rhodes, J.; Riccio, G.; Romelli, E.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Sapone, D.; Sartoris, B.; Schirmer, M.; Schneider, P.; Secroun, A.; Seidel, G.; Serrano, Susana; Sirignano, C.; Sirri, G.; Skottfelt, J.; Stanco, L.; Starck, J.-L.; Tallada-Crespí, P.; Taylor, A.N.; Teplitz, H.I.; Tereno, I.; Toledo-Moreo, R.; Torradeflot, F.; Tutusaus, I.; Valentijn, E.A.; Valenziano, L.; Vassallo, T.; Veropalumbo, A.; Wang, Yan; Weller, J.; Zacchei, A.; Zamorani, G.; Zoubian, J.; Zucca, E.; Bolzonella, M.; Bozzo, E.; Colodro-Conde, C.; Di Ferdinando, D.; Graciá-Carpio, J.; Marcin, S.; Mauri, Nuria; Neissner, C.; Nucita, A.A.; Sakr, Z.; Scottez, V.; Tenti, M.; Viel, M.; Wiesmann, M.; Akrami, Y.; Anselmi, S.; Baccigalupi, C.; Ballardini, M.; Borgani, S.; Borlaff, A.S.; Bruton, S.; Burigana, C.; Cabanac, R.; Calabro, A.; Cappi, A.; Carvalho, C.S.; Castro, T.; Cañas-Herrera, G.; Chambers, K.C.; Cooray, A.R.; Coupon, J.; Cucciati, O.; Davini, S.; De La Torre, S.; De Lucia, G.; Desprez, G.; Di Domizio, S.; Dole, H.; Díaz-Sánchez, A.; Escartin Vigo, J.A.; Escoffier, S.; Ferrero, I.; Finelli, F.; Gabarra, L.; Ganga, K.; García-Bellido, J.; Giacomini, F.; Gozaliasl, G.; Gwyn, S.; Hildebrandt, H.; Huertas-Company, M.; Jimenez Muñoz, A.; Kajava, J.J.E.; Kansal, V.; Kirkpatrick, C.C.; Legrand, L.; Loureiro, Ana; MacIas-Perez, J.; Magliocchetti, M.; Mainetti, G.; Maoli, R.; Martinelli, M.; Martins, C.J.A.P.; Matthew, S.; Maturi, M.; Maurin, L.; Metcalf, R.B.; Migliaccio, Marina; Monaco, P.; Morgante, G.; Nadathur, S.; Patrizii, L.; Pezzotta, A.; Porciani, C.; Potter, D.; Pöntinen, M.; Reimberg, P.; Rocci, P.-F.; Sánchez, A.G.; Schneider, A.; Schultheis, M.; Sefusatti, E.; Simon, P.; Spurio Mancini, A.; Stanford, S.A.; Steinwagner, J.; Testera, G.; Teyssier, R.; Toft, Søren; Tosi, S.; Troja, A.; Tucci, M.; Valiviita, J.; Vergani, D. (2025-05-13)

    Aims. We derived galaxy colour selections from Euclid and ground-based photometry, aiming to accurately define background galaxy samples in cluster weak-lensing analyses. These selections have been implemented in the Euclid ...

    X-ray properties and obscured fraction of AGN in the J1030 Chandra field 

    Signorini, M.; Marchesi, Simone; Gilli, R.; Brusa, M.; Comastri, A.; D'Amato, Q.; Iwasawa, Kazushi; Lanzuisi, G.; Mazzolari, G.; Mignoli, M.; Peca, A.; Prandoni, I.; Tozzi, P.; Vignali, C.; Vito, F.; Norman, C. (2025-01-31)

    The 500ks Chandra ACIS-I observation of the field around the z = 6.31 quasar SDSS J1030+0524 is currently the fifth deepest extragalactic X-ray survey. The rich multi-band coverage of the field allowed an effective ...

    AGN feedback in an infant galaxy cluster: LOFAR- Chandra view of the giant FRII radio galaxy J103025+052430 at z = 1.7 

    Brienza, M.; Gilli, R.; Prandoni, I.; D'Amato, Q.; Rajpurohit, K.; Calura, F.; Chiaberge, M.; Comastri, A.; Iwasawa, Kazushi; Lanzuisi, G.; Liuzzo, E.; Marchesi, S.; Mignoli, M.; Miley, G.; Norman, C.; Peca, A.; Raciti, M.; Shimwell, T.; Tozzi, P.; Vignali, C.; Vitello, F.; Vito, F. (2025-01-31)

    In the nearby universe, jets from active galactic nuclei (AGN) are observed to have a dramatic impact on their surrounding extragalactic environment. The effect of jets at high redshift (z > 1.5) is instead much more poorly ...

    The CARMA-NRO Orion Survey: Filamentary structure as seen in C<sup>18</sup>O emission 

    Suri, S.; Sánchez-Monge, A.; Schilke, P.; Clarke, S.D.; Smith, R.J.; Ossenkopf-Okada, V.; Klessen, R.; Padoan, Paolo; Goldsmith, P.; Arce, H.G.; Bally, J.; Carpenter, J.M.; Ginsburg, A.; Johnstone, D.; Kauffmann, J.; Kong, S.; Lis, D.C.; Mairs, S.; Pillai, T.; Pineda, J.E.; Duarte-Cabral, A. (2024-10-31)

    Context. We present an initial overview of the filamentary structure in the Orion A molecular cloud utilizing a high angular and velocity resolution C18O(1–0) emission map that was recently produced as part of the CARMA-NRO ...

    Erratum: Gaia Data Release 2: The kinematics of globular clusters and dwarf galaxies around the Milky Way 

    Eyer, L.; Molina, M.; Mor Crespo, Roger; Julbe, Francesc; Antoja Castelltort, M. Teresa; Jordi i Nebot, Carme; Borrachero, Raúl; Luri Carrascoso, Xavier; Castañeda Pons, Javier Bernardo; Fabricius, Claus; Masana Fresno, Eduard; Portell i de Mora, Jordi; Clotet Altarriba, Marcial; Balaguer Núñez, María de los Dolores; Bartolomé Muñoz, Sergi; Borrachero, Raúl; Cantat Gaudin, Tristan; Carrasco, José Manuel (Carrasco Martínez); Farras Casas, Martí; Figueras Siñol, Francesca; Garralda Torre, Nora; Romero Gómez, Mercè; Soria Nieto, Sergio; Voss, Hölger; Antiche Garzón, Erika; Torra Roca, Jorge; González Vidal, Juan José; Gaia Collaboration; Weiler, Michael; Castro Ginard, Alfred; Chemin, Laurent; Casamiquela, Laia; Bastian, U.; Lindegren, L. (2024-11-14)

    Aims. The goal of this paper is to demonstrate the outstanding quality of the second data release of the Gaia mission and its power for constraining many different aspects of the dynamics of the satellites of the Milky ...

    Gaia Data Release 2: The kinematics of globular clusters and dwarf galaxies around the Milky Way 

    Gaia Collaboration; Jordi i Nebot, Carme; Romero Gómez, Mercè; Figueras Siñol, Francesca; Mor Crespo, Roger; Luri Carrascoso, Xavier; Fabricius, Claus; Masana Fresno, Eduard; Portell i de Mora, Jordi; Clotet Altarriba, Marcial; Torra Roca, Jorge; Antiche Garzón, Erika; Balaguer Núñez, María de los Dolores; Borrachero, Raúl; Cantat Gaudin, Tristan; Carrasco Martínez, José Manuel; Casamiquela, Laia; Castro Ginard, Alfred; Farras Casas, Martí; Julbe, Francesc; Torra Clotet, Ferran; Voss, Hölger; Antoja Castelltort, M. Teresa (2019-09-19)

    This article has 2 errata: https://doi.org/10.1051/0004-6361/201832698e https://doi.org/10.1051/0004-6361/202039217