Search Publications

A study on missing lines in the synthetic solar spectrum near the Ca triplet

Coelho, Paula; Kitamura, Jessica R.; Martins, Lucimara P.

Synthetic stellar spectra are extensively used for many different applications in astronomy, from stellar studies (such as in the determination of atmospheric parameters of observed stellar spectra), to extragalactic studies (e.g. as one of the main ingredients of stellar population models). One of the main ingredients of synthetic spectral librar…

Constraining galaxy cluster velocity field with the thermal Sunyaev-Zel'dovich and kinematic Sunyaev-Zel'dovich cross-bispectrum

Hurier, G.

The Sunyaev-Zel'dovich (SZ) effects are produced by the interaction of cosmic microwave background (CMB) photons with the ionized and diffuse gas of electrons inside galaxy clusters integrated along the line of sight. The two main effects are the thermal SZ (tSZ) produced by thermal pressure inside galaxy clusters and the kinematic SZ (kSZ) produc…

Analysis of luminosity distributions of strong lensing galaxies: subtraction of diffuse lensed signal

Magain, P.; Biernaux, J.; Hauret, C.

Context. Strong gravitational lensing gives access to the total mass distribution of galaxies. It can unveil a great deal of information about the lenses' dark matter content when combined with the study of the lenses' light profile. However, gravitational lensing galaxies, by definition, appear surrounded by lensed signal, both point-like and dif…

Method of frequency dependent correlations: investigating the variability of total solar irradiance

Pelt, J.; Käpylä, M. J.; Olspert, N.

Context. This paper contributes to the field of modeling and hindcasting of the total solar irradiance (TSI) based on different proxy data that extend further back in time than the TSI that is measured from satellites.
Aims: We introduce a simple method to analyze persistent frequency-dependent correlations (FDCs) between the time series and …

Evolution of an equatorial coronal hole structure and the released coronal hole wind stream: Carrington rotations 2039 to 2050

Wimmer-Schweingruber, Robert F.; Berger, Lars; Heidrich-Meisner, Verena +2 more

Context. The Sun is a highly dynamic environment that exhibits dynamic behavior on many different timescales. Variability is observed both in closed and in open field line regions in the solar corona. In particular, coronal holes exhibit temporal and spatial variability. Signatures of these coronal dynamics are inherited by the coronal hole wind s…

Hidden starbursts and active galactic nuclei at 0 < z < 4 from the Herschel-VVDS-CFHTLS-D1 field: Inferences on coevolution and feedback (Corrigendum)

Le Floc'h, E.; Ilbert, O.; Zamorani, G. +12 more

Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.

Gaia Data Release 1 (Corrigendum). Principles of the photometric calibration of the G band

Jordi, C.; Balaguer-Núñez, L.; Evans, D. W. +24 more

Planck 2015 results. XIII. Cosmological parameters

Kneissl, R.; Miville-Deschênes, M. -A.; Boulanger, F. +259 more

This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission temperature data, but with increased precision. The temperature and polarizat…

The Gaia mission

Prusti, T.; Mazeh, T.; Zucker, S. +623 more

Gaia is a cornerstone mission in the science programme of the EuropeanSpace Agency (ESA). The spacecraft construction was approved in 2006, following a study in which the original interferometric concept was changed to a direct-imaging approach. Both the spacecraft and the payload were built by European industry. The involvement of the scientific …

Planck 2015 results. XX. Constraints on inflation

Kneissl, R.; Kim, J.; Miville-Deschênes, M. -A. +244 more

We present the implications for cosmic inflation of the Planck measurements of the cosmic microwave background (CMB) anisotropies in both temperature and polarization based on the full Planck survey, which includes more than twice the integration time of the nominal survey used for the 2013 release papers. The Planck full mission temperature data …