Publications (13)
Imaging the 44 AU Kuiper Belt-analogue debris ring around HD 141569A with GPI polarimetry
J. S. Bruzzone, S. Metchev, G. Duchene +53
We present the first polarimetric detection of the inner disk component around the pre-main sequence B9.5 star HD 141569A. Gemini Planet Imager H-band (1.65 micron) polarimetric di…
Recoil-induced lasing
J. Javaloyes, M. Perrin, G. L. Lippi +1
The interaction of an atomic gas confined inside a cavity with a strong electromagnetic field is numerically and theoretically investigated in a regime where recoil effects are not…
Collective Atomic Recoil Laser as a synchronization transition
J. Javaloyes, M. Perrin, A. Politi
We consider here a model previously introduced to describe the collective behavior of an ensemble of cold atoms interacting with a coherent electromagnetic field. The atomic motion…
Quantum Gravity:the axiomatic approach, a possible interpretation
G. Burdet, M. Perrin
Twenty years ago, by extending the Wightman axiom framework, it has been found possible to quantize only a conformal factor of the gravitational field. Gravitons being excluded fro…
Balloon Flight Background Measurement with Actively-Shielded Planar and Imaging CZT Detectors
P. F. Bloser, T. Narita, J. A. Jenkins +3
We present results from the flight of two prototype CZT detectors on a scientific balloon payload in September 2000. The first detector, referred to as ``CZT1,'' consisted of a 10…
Polarization singularities and Möbius strips in sound and water-surface waves
K. Y. Bliokh, M. A. Alonso, D. Sugic +3
We show that polarization singularities, generic for any complex vector field but so far mostly studied for electromagnetic fields, appear naturally in inhomogeneous yet monochroma…
Polarized disk emission from Herbig Ae/Be stars observed using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142
John D. Monnier, T. J. Harries, A. Aarnio +11
In order to look for signs of on-going planet formation in young disks, we carried out the first J-band polarized emission imaging of the Herbig Ae/Be stars HD 150193, HD 163296, a…
Panchromatic Imaging of a Transitional Disk: The Disk of GM Aur in Optical and FUV Scattered Light
Jeremy Hornbeck, Jeremy Swearingen, Carol Grady +18
We have imaged GM Aur with HST, detected its disk in scattered light at 1400A and 1650A, and compared these with observations at 3300A, 5550A, 1.1 microns, and 1.6 microns. The sca…
The Anatomy of an Unusual Edge-on Protoplanetary Disk I. Dust Settling in a Cold Disk
S. Wolff, G. Duchêne, K. Stapelfeldt +7
As the earliest stage of planet formation, massive, optically thick, and gas rich protoplanetary disks provide key insights into the physics of star and planet formation. When view…
An M-dwarf star in the transition disk of Herbig HD 142527; Physical parameters and orbital elements
S. Lacour, B. Biller, A. Cheetham +29
HD 142527A is one of the most studied Herbig Ae/Be stars with a transitional disk, as it has the largest imaged gap in any protoplanetary disk: the gas is cleared from 30 to 90 AU.…
Radiation structures on isotropic hypersurfaces
G. Burdet, M. Perrin
The geometrical structures (in the sense of E. Cartan) are analyzed which underlie the gravitational radiation phenomenon. Among the results are : - the introduction of the adapted…
Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B
K. Ward-Duong, J. Patience, K. Follette +55
We present new near-infrared Gemini Planet Imager (GPI) spectroscopy of HD 206893 B, a substellar companion orbiting within the debris disk of its F5V star. The , , , and…
Anomalous light absorption around subwavelength apertures in metal films
O. Lozan, M. Perrin, B. Ea-Kim +3
In this work, we study the heat dissipated at metal surfaces by the electromagnetic field scattered by isolated subwavelength apertures in metal screens. In contrast to our common…