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We present high-resolution imaging of the young binary T Tauri in 3 mm continuum emission. Compact dust emission with integrated flux density 50 +/- 6 mJy is resolved in an aperture synthesis map at 0.5" resolution and is centered at the…

天体物理学 · 物理学 2009-10-30 R. L. Akeson , D. W. Koerner , E. L. N. Jensen

The Antarctic TianMu Staring Observation Program is a time-domain optical sky survey project carried out in Antarctica, capable of large sky coverage, high-cadence sampling, and long-period staring. It utilizes the exceptional observing…

天体物理仪器与方法 · 物理学 2026-01-01 Hubiao Niu , Jing Zhong , Yu Zhang , Jianchun Shi , Rui Rong , Jinzhong Liu , Shiyin Shen , Zhenghong Tang , Dan Zhou

We propose an experiment to test the hypothesis that the reported anomaly on atmospheric neutrino fluxes is due to nu_mu <-> nu_x oscillations. It will rely both on a disappearance technique, exploiting the method of the dependence of the…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Curioni , G. Mannocchi , L. Periale , P. Picchi , F. Pietropaolo , S. Ragazzi

The last decade has witnessed remarkable advances in the characterization of the (sub-)millimeter emission from planet-forming disks. Instead, the study of the (sub-)centimeter emission has made more limited progress, to the point that only…

Most debris discs consist of a gas-poor, cold dust belt located tens to hundreds of astronomical units away from the host star. Many cold dust belts exhibit distinct structures attributed to the dynamic interaction of planetary systems.…

地球与行星天体物理 · 物理学 2024-04-09 Qiancheng Yang , Qiong Liu , Grant M. Kennedy , Mark C. Wyatt , Sarah Dodson-Robinson , Rachel Akeson , Nenghui Liao

We present new high spatial resolution (<~ 0.1") 1-5 micron adaptive optics images, interferometric 1.3 mm continuum and 12CO 2-1 maps, and 350 micron, 2.8 and 3.3 mm fluxes measurements of the HV Tau system. Our adaptive optics images…

Nulling interferometry is a technique providing high angular resolution which is the core of the space missions Darwin and the Terrestrail Planet Finder. The first objective is to reach a deep degree of starlight cancelation in the range 6…

天体物理学 · 物理学 2009-06-23 L. Labadie , P. Kern , P. Labeye , E. Le Coarer , C. Vigreux-Bercovici , A. Pradel , J. -E. Broquin , V. Kirschner

ASTEP South is the first phase of the ASTEP project (Antarctic Search for Transiting ExoPlanets). The instrument is a fixed 10 cm refractor with a 4kx4k CCD camera in a thermalized box, pointing continuously a 3.88 degree x 3.88 degree…

With Planck and Herschel, we now have the spectral coverage and angular resolution required to observe dense and cold molecular clouds. As these clouds are optically thick at short wavelength but optically thin at long wavelength, it is…

We present near and mid-infrared interferometric observations made with the Keck Interferometer Nuller and near-contemporaneous spectro-photometry from the IRTF of 11 well known young stellar objects, several observed for the first time in…

When imaged at high-resolution, many proto-planetary discs show gaps and rings in their dust sub-mm continuum emission profile. These structures are widely considered to originate from local maxima in the gas pressure profile. The…

地球与行星天体物理 · 物理学 2020-05-06 Giovanni P. Rosotti , Richard Teague , Cornelis Dullemond , Richard A. Booth , Cathie Clarke

This proposal describes an experimental search for sterile neutrinos beyond the Standard Model with a new CERN-SPS neutrino beam. The experiment is based on two identical LAr-TPC's followed by magnetized spectrometers, observing the…

仪器与探测器 · 物理学 2012-03-30 M. Antonello , D. Bagliani , B. Baibussinov , H. Bilokon , F. Boffelli , M. Bonesini , E. Calligarich , N. Canci , S. Centro , A. Cesana , K. Cieslik , D. B. Cline , A. G. Cocco , D. Dequal , A. Dermenev , R. Dolfini , M. De Gerone , S. Dussoni , C. Farnese , A. Fava , A. Ferrari , G. Fiorillo , G. T. Garvey , F. Gatti , D. Gibin , S. Gninenko , F. Guber , A. Guglielmi , M. Haranczyk , J. Holeczek , A. Ivashkin , M. Kirsanov , J. Kisiel , I. Kochanek , A. Kurepin , J. Łagoda , G. Lucchini , W. C. Louis , S. Mania , G. Mannocchi , S. Marchini , V. Matveev , A. Menegolli , G. Meng , G. B. Mills , C. Montanari , M. Nicoletto , S. Otwinowski , T. J. Palczewski , G. Passardi , F. Perfetto , P. Picchi , F. Pietropaolo , P. Płoński , A. Rappoldi , G. L. Raselli , M. Rossella , C. Rubbia , P. Sala , A. Scaramelli , E. Segreto , D. Stefan , J. Stepaniak , R. Sulej , O. Suvorova , M. Terrani , D. Tlisov , R. G. Van de Water , G. Trinchero , M. Turcato , F. Varanini , S. Ventura , C. Vignoli , H. G. Wang , X. Yang , A. Zani , K. Zaremba , M. Benettoni , P. Bernardini , A. Bertolin , C. Bozza , R. Brugnera , A. Cecchetti , S. Cecchini , G. Collazuol , P. Creti , F. Dal Corso , I. De Mitri , G. De Robertis , M. De Serio , L. Degli Esposti , D. Di Ferdinando , U. Dore , S. Dusini , P. Fabbricatore , C. Fanin , R. A. Fini , G. Fiore , A. Garfagnini , G. Giacomelli , R. Giacomelli , G. Grelli , C. Guandalini , M. Guerzoni , U. Kose , G. Laurenti , M. Laveder , I. Lippi , F. Loddo , A. Longhin , P. Loverre , G. Mancarella , G. Mandrioli , A. Margiotta , G. Marsella , N. Mauri , E. Medinaceli , A. Mengucci , M. Mezzetto , R. Michinelli , M. T. Muciaccia , D. Orecchini , A. Paoloni , A. Pastore , L. Patrizii , M. Pozzato , R. Rescigno , G. Rosa , S. Simone , M. Sioli , G. Sirri , M. Spurio , L. Stanco , S. Stellacci , A. Surdo , M. Tenti , V. Togo , M. Ventura , M. Zago

We present observational evidences that dust in the circumnuclear region of AGNs has different properties than in the Galactic diffuse interstellar medium. By comparing the reddening of optical and infrared broad lines and the X-ray…

天体物理学 · 物理学 2009-10-31 R. Maiolino , A. Marconi , M. Salvati , G. Risaliti , P. Severgnini , F. La Franca , L. Vanzi

To test the dust torus model for active galactic nuclei directly, we study the extent and morphology of the nuclear dust distribution in the Circinus galaxy using high resolution interferometric observations in the mid-infrared with the…

The Large Binocular Telescope Interferometer (LBTI) is a versatile instrument designed for high-angular resolution and high-contrast infrared imaging (1.5-13 microns). In this paper, we focus on the mid-infrared (8-13 microns) nulling mode…

Sensitive ground-based submillimeter surveys, such as ATLASGAL, provide a global view on the distribution of cold dense gas in the Galactic plane. Here we use the 353 GHz maps from the Planck/HFI instrument to complement the ground-based…

We introduce an observational tool based on visibility nulls in optical spectro-interferometry fringe data to probe the structure of stellar atmospheres. In a preliminary demonstration, we use both Navy Precision Optical Interferometer…

天体物理仪器与方法 · 物理学 2019-07-26 J. T. Armstrong , A. M. Jorgensen , D. Mozurkewich , H. R. Neilson , E. K. Baines , H. R. Schmitt , G. T. van Belle

The Philae lander of the Rosetta mission, aimed at the in situ investigation of comet 67P/C-G, was deployed to the surface of the comet nucleus on 12 Nov 2014 at 2.99 AU heliocentric distance. The Dust Impact Monitor (DIM) as part of the…

Infrared interferometry has fuelled a paradigm shift in our understanding of the dusty structure in the central parsecs of Active Galactic Nuclei (AGN). The dust is now thought to comprise of a hot ($\sim1000\,$K) equatorial disk, some of…