Publications (20)
The AstraLux-TESS high-spatial resolution imaging survey. Search for stellar companions of 215 planet candidates from TESS
J. Lillo-Box, M. Morales-Calderón, D. Barrado +6
Chance-aligned sources or blended companions can cause false positives in planetary transit detections or simply bias the determination of the candidate properties. In the era of h…
Star formation and accretion rates within 500 pc as traced by Gaia DR3 XP spectra
L. Delfini, M. Vioque, Ã. Ribas +1
Accretion rates from protoplanetary disks onto forming stars are a key ingredient in star formation and protoplanetary disk evolution. Extensive efforts surveying individual star f…
Homogeneous study of Herbig Ae/Be stars from spectral energy distributions and Gaia EDR3
J. Guzman-Diaz, I. Mendigutia, B. Montesinos +6
(Abridged) Herbig Ae/Be stars (HAeBes) have so far been studied based on relatively small samples that are scattered throughout the sky. Their fundamental stellar and circumstellar…
Gas, not dust: Migration of TESS/Gaia hot Jupiters possibly halted by the magnetospheres of protoplanetary disks
I. MendigutÃa, J. Lillo-Box, M. Vioque +4
(Abridged) The presence of short-period (< 10 days) planets around main sequence (MS) stars has been associated either with the dust-destruction region or with the magnetospheric g…
Relation between metallicities and spectral energy distributions of Herbig Ae/Be stars. A potential link with planet formation
J. Guzman-Diaz, B. Montesinos, I. Mendigutia +5
(Abridged) The stellar metallicity, [M/H], may have important implications for planet formation. In particular, Kama et al. proposed that the deficit of refractory elements in the…
Gaia EDR3 comparative study of protoplanetary disk fractions in young stellar clusters
I. MendigutÃa, E. Solano, M. Vioque +4
(Abridged) The lifetime of protoplanetary disks around young stars limits the timescale when planets form. A disk dissipation timescale < 10 Myr was inferred from surveys providing…
ESO User Support and Observation Preparation for VLTI Science Operations
M. Wittkowski, G. Beccari, A. Corporaal +15
The paper describes recent user‑focused upgrades to the VLTI, including new guiding and instrument modes, enhanced observation‑planning tools, and the availability of reduced GRAVI…
Intermediate mass T Tauri disk masses and a comparison to their Herbig disk descendants
L. M. Stapper, M. R. Hogerheijde, E. F. van Dishoeck +3
The precursors of Herbig stars are called Intermediate Mass T Tauri (IMTT) stars, which have spectral types later than F, but stellar masses between 1.5 and 5 M_\odot, and will eve…
The first interferometric survey in the K-band of massive YSOs. On the hot dust, ionised gas, and binarity at au scales
E. Koumpia, W. -J. de Wit, R. D. Oudmaijer +8
Circumstellar discs are essential for high mass star formation, while multiplicity, in particular binarity, appears to be an inevitable outcome since the vast majority of massive s…
Catalogue of new Herbig Ae/Be and classical Be stars. A machine learning approach to Gaia DR2
M. Vioque, R. D. Oudmaijer, M. Schreiner +4
The intermediate-mass pre-main sequence Herbig Ae/Be stars are key to understanding the differences in formation mechanisms between low- and high-mass stars. The study of the gener…
The accretion rates and mechanisms of Herbig Ae/Be stars
C. Wichittanakom, R. D. Oudmaijer, J. R. Fairlamb +3
This work presents a spectroscopic study of 163 Herbig Ae/Be stars. Amongst these, we present new data for 30 objects. Stellar parameters such as temperature, reddening, mass, lumi…
ESOFinder: an LLM-powered tool to help users navigate ESO documentation
P. Sánchez-Sáez, C. Reinero, M. Vioque +6
The large amount and diversity of documentation available for users of the European Southern Observatory (ESO), spanning the full observing lifecycle from proposal preparation and…
X-Shooter survey of disk accretion in Upper Scorpius II. A lack of correlation between accretion rates and disk properties
A. Empey, C. F. Manara, R. Garcia Lopez +19
The evolution of protoplanetary discs is intertwined with the process of planet formation, growth and migration. Studies of nearby star forming regions of different ages and proper…
Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake. How do Planetary Systems Form?
I. MendigutÃa, N. Huélamo, I. Jiménez-Serra +32
The detection and characterization of protoplanets in protoplanetary disks around young stars is emerging as a transformative field that will redefine our understanding of how plan…
Lithium and the evolution of intermediate-mass T Tauri and Herbig stars. Rotation, accretion, and planets
I. MendigutÃa, J. Campbell-White, B. Montesinos +9
(Abridged) We contribute to our understanding of the evolution of young intermediate-mass stars by providing a comprehensive analysis of their lithium (Li) content. A sample of 71…
K-band GRAVITY/VLTI interferometry of "extreme" Herbig Be stars. The size-luminosity relation revisited
P. Marcos-Arenal, I. MendigutÃa, E. Koumpia +7
(Abridged:) It has been hypothesized that the location of Herbig Ae/Be stars (HAeBes) within the empirical relation between the inner disk radius (r), inferred from K-band i…
High-resolution ALMA observations of compact discs in the wide-binary system Sz 65 and Sz 66
J. M. Miley, J. Carpenter, R. Booth +11
Substructures in disc density are ubiquitous in the bright extended discs that are observed with high resolution. These substructures are intimately linked to the physical mechanis…
Planet formation in intermediate-separation binary systems
O. PaniÄ, T. J. Haworth, M. G. Petr-Gotzens +13
We report the first characterisation of the individual discs in the intermediate separation binary systems KK Oph and HD 144668 at millimetre wavelengths. In both systems the circu…
Gaia DR2 study of Herbig Ae/Be stars
M. Vioque, R. D. Oudmaijer, D. Baines +2
We use Gaia Data Release 2 (DR2) to place 252 Herbig Ae/Be stars in the HR diagram and investigate their characteristics and properties. For all known Herbig Ae/Be stars with paral…
First detection of a disk free of volatile elements around a young A-type star: A sign of collisions between rocky planets?
M. E. van den Ancker, N. P. Gentile Fusillo, T. J. Haworth +7
Aims. We present the first detailed analysis of the astrophysical parameters of the poorly studied Sco-Cen member HD 152384 and its circumstellar environment. Methods. We analyze n…