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MEMORIE DELLA SOCIET ` A ASTRONOMICA ITALIANA

Vol.85 n.4 2014

Gaia and the unseen

The brown dwarf question

Torino University Rettorato, March 24-26, 2014

editors:Richard L. Smart, David Barrado y Navascues and Jacqueline K. Faherty

TABLE OF CONTENTS

Index 621

Foreword 625

List of Participants 627

Gaia

J.H.J. de Bruijne

Astrometry of brown dwarfs with Gaia 631

L. M. Sarro, D. Barrado, C. Carri´on, J. A Caballero

Gaia limits for brown dwarf studies 637

A. Sozzetti

Gaia, non-single stars, brown dwarfs, and exoplanets 643 R. L. Smart

L/T dwarfs that Gaia will see 649

Brown dwarf pushing the envelope 1

J. Davy Kirkpatrick

Outstanding brown dwarf questions 655

Richard J. Parker

Probing brown dwarf formation mechanisms with Gaia 661

F. Bouchy

Follow-up of transiting brown dwarf companions identified with Gaia 665 Y. Dzigan, S. Zucker

Finding hot-jupiters by Gaia photometry using the directed follow-up strategy 669

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622

J. Sahlmann, P. F. Lazorenko, D. S´egransan, E. L. Mart´ın, M. Mayor, D. Queloz, S.

Udry

Astrometric planet search around M8–L2 dwarfs from the ground and with Gaia 674 V. Joergens, S. Reffert

Gaia detection capabilities of spectroscopic brown dwarf binaries 678

Brown dwarf models

E. Manjavacas, M. Bonnefoy, J. E. Schlieder, F. Allard, P. Rojo, B. Goldman, G.

Chauvin, D. Homeier, N. Lodieu, T. Henning

New constraints on the formation and settling of dust in the atmospheres of young

M and L dwarfs 684

E. Buenzli, M. S. Marley, D. Apai, R. E. Lupu

Cloud structure of brown dwarfs from spectroscopic variability observations 690 Ch. Helling

Expect the unexpected: non-equilibrium processes in brown dwarf atmospheres 695

Brown dwarf pushing the envelope 2

J. Bochanski

Gaia & Ultra-Cool Dwarfs: a high-definition picture of the Milky Way 699 N. W. Evans

Microlensing, brown dwarfs and Gaia 704

Brown dwarf and moving groups

A. R. Riedel

Kinematics and luminosities of brown dwarfs with the BDNYC group 710 L. Malo, J. Gagne, R. Doyon, D. Lafreniere, E. Artigau, G. Feiden, L. Albert

Prospects for the BANYAN search of low-mass moving group members with Gaia,

and the importance of magnetic fields for isochronal age 715 H. Bouy, E. Bertin, L. M. Sarro, E. Moraux, D. Barrado, J.C. Cuillandre, J. Bouvier,

A. Berihuete, N. Wright, Y. Beletsky, W. Brandner, J. Olivares

Complementing Gaia from the ground 719

Ages of brown dwarf

Jacqueline. K. Faherty

Age determination for Ultracool Dwarfs 725

S. L. Casewell

Gaia and white dwarf - brown dwarf binaries 731

Z. H. Zhang, D. J. Pinfield, B. Burningham, M. C. G´alvez-Ortiz, H. R. A. Jones, F.

Marocco, R. L. Smart, N. Lodieu

Halo brown dwarf and Gaia potential 736

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623 S.J. Schmidt

Examining the age/activity relationship of Ultracool Dwarfs with Gaia 741

Brown dwarf pushing the envelope 3

B. Burningham

Who wants a million brown dwarfs? 745

C. Reyl´e

Gaia and the luminosity and mass functions of field brown dwarfs 752 J.A. Caballero

Gaia and brown dwarfs from Spain 757

J. C. Beamin, V. D. Ivanov, R. Kurtev, M. Gromadzki, K. Pe˜na Ramirez, D.

Minniti

Proper motions and brown dwarfs with the VVV survey 761

F.J. Galindo-Guil,D. Barrado, H. Bouy

Towards an unbiased stellar census in open clusters using multi-wavelength pho-

tometry 765

F. Marocco, R. L. Smart, H. R. A. Jones, A. C. Day-Jones, B. Burningham, D. J.

Pinfield

A spectroscopic census of brown dwarfs observed by Gaia − completing the 3D

picture 769

A. Bayo, C. Rodrigo, D. Barrado, F. Allard

Physical parameter determinations of young Ms 773

IPERCOOL

C.A. Beichman , C.R. Gelino, J. Kirkpatrick, J. Davy

Distances to WISE Y Dwarfs 778

A.H. Andrei

Parsec’s astrometry direct approaches 782

N.J. Cook, D. J. Pinfield, B. Burningham, H. R. A. Jones, A. C. Day-Jones Confirming Ultra-Cool companions to Mdwarfs using low-resolution near-

infrared-spectra 788

R. Teixeira, C. Ducourant, A. Krone-Martins, S. Scarano, A. Moitinho, Ph. Galli

Parallaxes of ultra cool brown dwarf calibrators 793

Y. Wang, R. L. Smart, H.R.A. Jones, Z. Shao

Gaia colors of brown dwarfs 795

P.W. Leigh Smith, R. Lucas, B. Bunce, H.R.A. Burningham, R.L. Jones, R.L. Smart, N. Skrzypek, D.R. Rodriguez, J. Faherty

A search for high proper motion objects in the UKIDSS Galactic plane survey 799

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624

Z. Qi, B. Bucciarelli, R.L. Smart, A. Spagna

Validation of the Absolute Proper Motions Outside the Plane catalog (APOP) 803 L. Nicastro, D. Ricci, P. G. Sprimont

Web applications meet astronomical archives 808

H.R.A. Jones, D. Henry, R. Thomson, D.T. Reid, E. Oliva, A. Reiners, G.

Anglada-Escude, R. Mendez, J.S. Jenkins, J.R. Barnes, M. Tuomi, C.J. Evans, W. Taylor, M. Riva, L. Origlia, R. Smart, L. Nicastro, A. Sozetti, R. Nelson, R. Saglia, C. Haswell, A. Holland, Z. Zhang, W. Chaplin, Y. Elsworth, A. Miglio, P. Hauschildt, M. Burleigh, D. Pollaco, K. Rice, M. Konacki, A. Niedzi

Photonic Spectrograph for new Technology Telescope (PSTT) 814 Tang Zheng-Hong, Mao Yin-Dun, Li Yan, Yu Yong, Oleksandr Shulga, Yevgen

Kozyryev, Yevgeniya Sybiryakova

Precise astrometry of Near-Earth-Object with Rotating-Drift-Scan CCD 821 J. Davy Kirkpatrick

Summary of the workshop “Gaia and the unseen: the brown dwarf question” 825

Riferimenti

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