Context. Large spectroscopic Galactic surveys imply a selection function in the way they performed their target selection. Aims. We investigate here the effect of the selection function on the metallicity distribution function (MDF) and on the vertical metallicity gradient by studying similar lines of sight using four different spectroscopic...
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2017 (v1)Journal articleUploaded on: December 4, 2022
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October 2021 (v1)Journal article
Context. Diffuse interstellar bands (DIBs) are important interstellar absorption features of which the origin is still debated. With the large data sets from modern spectroscopic surveys, background stars are widely used to show how the integrated columns of DIB carriers accumulate from the Sun to great distances. To date, studies on the...
Uploaded on: December 4, 2022 -
January 2018 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
2021 (v1)Journal article
Context. Diffuse interstellar bands (DIBs) are interstellar absorption features that widely exist in the optical and near-infrared wavelength range. DIBs play an important role in the lifecycle of the interstellar medium and can also be used to trace the Galactic structure.Aims. We developed a set of procedures to automatically detect and...
Uploaded on: February 22, 2023 -
2021 (v1)Journal article
Context. Diffuse interstellar bands (DIBs) are interstellar absorption features that widely exist in the optical and near-infrared wavelength range. DIBs play an important role in the lifecycle of the interstellar medium and can also be used to trace the Galactic structure.Aims. We developed a set of procedures to automatically detect and...
Uploaded on: December 4, 2022 -
December 2015 (v1)Journal article
International audience
Uploaded on: February 22, 2023 -
December 2015 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
March 2017 (v1)Journal article
Context. Several recent studies have demonstrated that the Galactic bulge hosts two components with different mean metallicities, and possibly different spatial distribution and kinematics. As a consequence, both the metallicity distribution and the radial velocity of bulge stars vary across different lines of sight. Aims: We present here the...
Uploaded on: December 4, 2022 -
February 2014 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
June 2021 (v1)Journal article
Context. The nuclear stellar disc (NSD) is, together with the nuclear star cluster (NSC) and the central massive black hole, one of the main components in the central parts of our Milky Way. However, until recently, only a few studies of the stellar content of the NSD have been obtained owing to extreme extinction and stellar crowding.Aims. We...
Uploaded on: December 4, 2022 -
October 2020 (v1)Journal article
The Galactic center region, including the nuclear disk, has until recently been largely avoided in chemical census studies because of extreme extinction and stellar crowding. Large, near-IR spectroscopic surveys, such as the Apache Point Observatory Galactic Evolution Experiment (APOGEE), allow the measurement of metallicities in the inner...
Uploaded on: December 4, 2022 -
2023 (v1)Journal article
After the second data release of Gaia, the number of new globular cluster candidates has increased importantly. However, most of them need to be properly characterised, both spectroscopically and photometrically, by means of radial velocities, metallicities, and deeper photometric observations. Our goal is to provide an independent confirmation...
Uploaded on: November 30, 2023 -
2017 (v1)Journal article
We take advantage of the Gaia-ESO Survey iDR4 bulge data to search for abundance anomalies that could shed light on the composite nature of the Milky Way bulge. The α-element (Mg, Si, and whenever available, Ca) abundances, and their trends with Fe abundances have been analysed for a total of 776 bulge stars. In addition, the aluminum...
Uploaded on: December 4, 2022 -
2017 (v1)Journal article
Context. Baade's window (BW) is one of the most observed Galactic bulge fields in terms of chemical abundances. Owing to its low and homogeneous interstellar absorption it is considered the perfect calibration field for Galactic bulge studies.Aims. In the era of large spectroscopic surveys, calibration fields such as BW are necessary for cross...
Uploaded on: December 4, 2022 -
September 2014 (v1)Journal article
International audience
Uploaded on: December 4, 2022