Thomas Henning, Inga Kamp, Matthias Samland, Aditya M. Arabhavi, Jayatee Kanwar, Ewine F. van Dishoeck, Manuel Güdel, Pierre-Olivier Lagage, Christoffel Waelkens, Alain Abergel, Olivier Absil, David Barrado, Anthony Boccaletti, Jeroen Bouwman, Alessio Caratti o Garatti, Vincent Geers, Adrian M. Glauser, Fred Lahuis, Michael Mueller, Cyrine Nehmé, Göran Olofsson, Eric Pantin, Tom P. Ray, Silvia Scheithauer, Bart Vandenbussche, L. B. F. M. Waters, Gillian Wright, Ioannis Argyriou, Valentin Christiaens, Riccardo Franceschi, Danny Gasman, Sierra L. Grant, Rodrigo Guadarrama, Hyerin Jang, Maria Morales-Calderón, Nicole Pawellek, Giulia Perotti, Donna Rodgers-Lee, Jürgen Schreiber, Kamber Schwarz, Benoît Tabone, Milou Temmink, Marissa Vlasblom, Luis Colina, Thomas R. Greve and Göran Östlin
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引用次数: 0
Abstract
The study of protoplanetary disks has become increasingly important with the Kepler satellite finding that exoplanets are ubiquitous around stars in our galaxy and the discovery of enormous diversity in planetary system architectures and planet properties. High-resolution near-IR and ALMA images show strong evidence for ongoing planet formation in young disks. The JWST MIRI mid-INfrared Disk Survey (MINDS) aims to (1) investigate the chemical inventory in the terrestrial planet-forming zone across stellar spectral type, (2) follow the gas evolution into the disk dispersal stage, and (3) study the structure of protoplanetary and debris disks in the thermal mid-IR. The MINDS survey will thus build a bridge between the chemical inventory of disks and the properties of exoplanets. The survey comprises 52 targets (Herbig Ae stars, T Tauri stars, very low-mass stars and young debris disks). We primarily obtain MIRI/MRS spectra with high signal-to-noise ratio (∼100–500) covering the complete wavelength range from 4.9 to 27.9 μm. For a handful of selected targets we also obtain NIRSpec IFU high resolution spectroscopy (2.87–5.27 μm). We will search for signposts of planet formation in thermal emission of micron-sized dust—information complementary to near-IR scattered light emission from small dust grains and emission from large dust in the submillimeter wavelength domain. We will also study the spatial structure of disks in three key systems that have shown signposts for planet formation, TW Hya and HD 169142 using the MIRI coronagraph at 15.5 μm and 10.65 μm respectively and PDS 70 using NIRCam imaging in the 1.87 μm narrow and the 4.8 μm medium band filter. We provide here an overview of the MINDS survey and showcase the power of the new JWST mid-IR molecular spectroscopy with the TW Hya disk spectrum where we report the detection of the molecular ion and the robust confirmation of HCO+ earlier detected with Spitzer.
期刊介绍:
The Publications of the Astronomical Society of the Pacific (PASP), the technical journal of the Astronomical Society of the Pacific (ASP), has been published regularly since 1889, and is an integral part of the ASP''s mission to advance the science of astronomy and disseminate astronomical information. The journal provides an outlet for astronomical results of a scientific nature and serves to keep readers in touch with current astronomical research. It contains refereed research and instrumentation articles, invited and contributed reviews, tutorials, and dissertation summaries.