Ara es mostren els items 1-11 de 11

    • Desenvolupament i caracterització d’un star tracker basat en Raspberry Pi 

      Riba Serrano, Joan (Universitat Politècnica de Catalunya, 2023-09-12)
      Treball Final de Grau
      Accés obert
      In astronomy and the aerospace world, determining the orientation or attitude of a system in space is of great importance, whether it's simply to determine observations or to successfully carry out space missions. One of ...
    • Feasibility study of the PEC compressor in HDFS file format 

      Estepa Sánchez, Carlos (Universitat Politècnica de Catalunya, 2011-11-15)
      Projecte/Treball Final de Carrera
      Accés obert
      English: Improvement of the astrometric format GBIN using HFG5+ PEC.
    • Gaia DR2 white dwarfs in the Hercules stream 

      Torres Gil, Santiago; Cantero, Carles; Camisassa, María E.; Antoja, T.; Rebassa Mansergas, Alberto; Althaus, Leandro G.; Thelemaque, Thomas; Canovas Cabrera, Héctor (EDP Sciences, 2019-09-01)
      Article
      Accés obert
      We analyzed the velocity space of the thin- and thick-disk Gaia white dwarf population within 100 pc by searching for signatures of the Hercules stellar stream. We aimed to identify objects belonging to the Hercules stream, ...
    • Hubble Space Telescope survey of Magellanic Cloud star clusters: photometry and astrometry of 113 clusters and early results 

      Milone, Antonio P.; Cordoni, Giacomo; Marino, A. F.; D’Antona, F.; Bellini, Andrea; Di Criscienzo, Marcella; Dondoglio, Emanuele; Lagioia, Edoardo Prospero; Langer, Norbert; Legnardi, Maria Vittoria; Libralato, Mattia; Baumgardt, Holger; Bettinelli, M.; Cavecchi, Yuri (EDP Sciences, 2023-04-01)
      Article
      Accés obert
      In the past few years, we have undertaken an extensive investigation of star clusters and their stellar populations in the Large and Small Magellanic Clouds (LMC and SMC) based on archival images collected with the Hubble ...
    • Hunting for open clusters in Gaia DR2: 582 new open clusters in the galactic disc 

      Castro Ginard, Alfred; Jordi Nebot, Carme; Luri Carrasco, Xavier; Álvarez Cid-Fuentes, Javier; Casamiquela, Laia; Anders, Friedrich; Cantat Gaudin, Tristan; Monguió Montells, Maria; Balaguer Núñez, Lola; Solà Martinell, Salvi; Badia Sala, Rosa Maria (EDP Sciences, 2020-03-04)
      Article
      Accés obert
      Context. Open clusters are key targets for studies of Galaxy structure and evolution, and stellar physics. Since the Gaia data release 2 (DR2), the discovery of undetected clusters has shown that previous surveys were ...
    • Hunting for open clusters in Gaia EDR3: 628 new open clusters found with OCfinder 

      Castro Ginard, Alfred; Jordi Nebot, Carme; Luri Carrascoso, Xavier; Cantat Gaudin, Tristan; Carrasco Martínez, Josep Manel; Casamiquela Floriach, Laia; Anders, Friedrich; Balaguer Núñez, Lola; Badia Sala, Rosa Maria (EDP Sciences, 2022-05)
      Article
      Accés obert
      Context. The improvements in the precision of the published data in Gaia EDR3 with respect to Gaia DR2, particularly for parallaxes and proper motions, offer the opportunity to increase the number of known open clusters ...
    • Implementation of a random forest machine learning algorithm in the context of Gaia space mission 

      Cantero Mitjans, Carles (Universitat Politècnica de Catalunya, 2018-02-14)
      Projecte Final de Màster Oficial
      Accés obert
      Gaia space astrometry mission will scan about one billion stars an average of 70 times each over five years. During the mission time repeated astrometric, photometric and spectroscopic observations of the entire sky down ...
    • Statistical analysis of a massive astronomical cross-matching process 

      Nuño Gómez, Daniel-Juan (Universitat Politècnica de Catalunya, 2016-04-08)
      Projecte/Treball Final de Carrera
      Accés obert
      Gaia is an ESA mission to create a 3D map of our Galaxy. The main objective is to provide positional measurements for about one billion stars. Gaia will scan the same sky region about 85 times in different directions. This ...
    • TESS first look at evolved compact pulsators: Known ZZ Ceti stars of the southern ecliptic hemisphere as seen by TESS 

      Raddi, Roberto (EDP Sciences, 2020-06-01)
      Article
      Accés obert
      Context. We present our findings on 18 previously known ZZ Ceti stars observed by the TESS space telescope in 120 s cadence mode during the survey observation of the southern ecliptic hemisphere. Aims. We focus on the ...
    • Testing Precessing Bar Models in Gaia Data 

      Pardo Araujo, Celsa (Universitat Politècnica de Catalunya, 2020-10)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Universitat de Barcelona
      In this work we explore the origin of the Galactic warp, which is a deformation of the Galactic disc forming its typical S-shape when viewed edge-on. This novel theory is based on the idea of a small misalignment between ...
    • The Traspena meteorite: heliocentric orbit, atmospheric trajectory, strewn field, and petrography of a new L5 ordinary chondrite 

      Andrade Baliño, Manuel; Docobo Durántez, Jose Angel; Garcia Guinea, Javier; Campo Díaz, Pedro Pablo; Tapia, Mar; Sánchez Muñoz, Luis; Villasante Marcos, Víctor; Peña Asensio, Eloy; Trigo Rodríguez, Josep Maria; Ibáñez Insa, Jordi; Campeny Crego, Marc; Llorca Piqué, Jordi (Oxford University Press, 2023-01-01)
      Article
      Accés obert
      The Traspena meteorite fell on 2021 January 18 about 20¿km south-east of the city of Lugo (Galiza, Spain), shortly after a huge and bright fireball crossed the sky for 4.84¿s. Astrometric measurements obtained from the ...