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SB2 Cepheids
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Visitors so far: 24425.
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Main
Highlights
Job offers (1 new)
Projects
SB2 Cepheids
Classical Cepheids
Type II Cepheids
Papers
by category
by first author
by target
Visitors so far: 24425.
Applications are invited for 1 postdoctoral position at the Nicolaus Copernicus Astronomical Center of the Polish Science Academy (CAMK PAN), in Warsaw, Poland, to study the astrophysics of Cepheids through the novel analysis of Cepheids in binary stars. CAMK PAN is the leading astrophysical institute in Poland, hosting about 50 staff researchers and 30 PhD students.
A successful applicant will work with Dr. Bogumił Pilecki on the project “Understanding Cepheids: physical and empirical basis for our main tool for distance determination in the Universe”. The position will be funded from a Polish National Science Center (NCN) SONATA BIS research grant (UMO-2020/38/E/ST9/00486). Generous funding for travel and excellent working environment is secured. This position is offered for up to 2.5 years (1 year basic contract + possible extension).
click here to see the full announcement
Applications are invited for 1 postdoctoral position at the Nicolaus Copernicus Astronomical Center of the Polish Science Academy (CAMK PAN), in Warsaw, Poland, in the fields of pulsating and binary stars. CAMK PAN is the leading astrophysical institute in Poland, hosting about 50 staff researchers and 30 PhD students. CAMK PAN scientists participate in many international projects.
A successful applicant will work with Dr. Bogumił Pilecki as the Principal Investigator on the project “Understanding Cepheids: physical and empirical basis for our main tool for distance determination in the Universe”. The position will be funded from a Polish National Science Center (NCN) SONATA BIS research grant (UMO-2020/38/E/ST9/00486). Generous funding for travel and excellent working environment is secured. This position is offered for two years.
click here to see the full announcement
Applications are invited for 1 PhD position at the Nicolaus Copernicus Astronomical Center of the Polish Science Academy (CAMK PAN), in Warsaw, Poland, in the fields of pulsating and binary stars. CAMK PAN is the leading astrophysical institute in Poland, hosting about 50 staff researchers and 30 PhD students. CAMK PAN scientists participate in many international projects.
A successful applicant will work with Dr. Bogumił Pilecki as the Principal Investigator on the project “Understanding Cepheids: physical and empirical basis for our main tool for distance determination in the Universe”. The position will be funded from a Polish National Science Center (NCN) SONATA BIS research grant (UMO-2020/38/E/ST9/00486). Generous funding for travel and excellent working environment is secured. This position is offered for four years.
click here to see the full announcement
Classical Cepheids are successfully being used to measure distances in the Universe for over a century, but our understanding of their physical properties and evolution is still very limited. It was not a problem when measurements (distances, Hubble constant) were done with 10%-precision, but currently precision of 1% or less is necessary to solve the most pressing problems in astrophysics (e.g. the Hubble tension).
Our knowledge of Cepheid astrophysics has started to improve only recently with the first precise measurements of the masses and radii obtained by our group from the analysis of Cepheids in eclipsing binary systems. However, only a few such measurements are available now, and there are still many open problems to be solved. We want to improve our understanding of these important stars through a detailed investigation of about 50 newly discovered Cepheids in binary systems. This will consist of measurements of their physical and atmospheric properties (some of them for the first time), and the study of their multiplicity and binary interactions. Photometric observations will be performed in our dedicated observatory located at Cerro Armazones in Chile (this observatory will be soon expanded with 4 new telescopes in the 0.8–2.5m range), while for the spectroscopic observations the best world-class telescopes (Magellan, VLT, etc.) and instruments will be utilized. For the analysis, we will use modern tools and novel methods that were never applied before. The project will be performed within the Araucaria group in a large international collaboration (Chile, France, Switzerland, Germany, USA, Austria, Italy). The group consists of about 15 astronomers in CAMK PAN and about 20 in other countries.