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Related papers: 55 Cancri e's occultation captured with CHEOPS

200 papers

We present the reanalysis of three 15 micron JWST/MIRI secondary eclipses of LHS 1140 c, a warm super-Earth (R$_{\rm{p}}$ = 1.272 R$_{\oplus}$) in a 3.78-day orbit around an M4.5 dwarf. We present a novel method for data reduction that…

Earth and Planetary Astrophysics · Physics 2025-10-14 Alexandra Rochon , Étienne Artigau , Drew Weisserman , Lisa Dang , René Doyon , Charles Cadieux , Ryan Cloutier

We present a detailed analysis for a subset of the high resolution (~35 mas, or 5 au) ALMA observations from the Disk Substructures at High Angular Resolution Project (DSHARP) to search for faint 1.3 mm continuum emission associated with…

This paper investigates the frequency of transiting planetary systems around metal-polluted white dwarfs using high-cadence photometry from ULTRACAM and ULTRASPEC on the ground, and space-based observations with TESS. Within a sample of 313…

A new series of Earth occultation observations has been started in 2012 to refine the determination of the cosmic X-ray background by the INTEGRAL mission. We show here that the new detector lightcurves in the 3 to 160 keV range differ from…

High Energy Astrophysical Phenomena · Physics 2013-02-27 M. Türler , N. Produit , L. Pavan , C. Ferrigno , P. Bordas

We observed the planet-hosting system PDS 70 with the James Webb Interferometer, JWST's Aperture Masking Interferometric (AMI) mode within NIRISS. Observing with the F480M filter centered at 4.8 $\mu$m, we simultaneously fit geometrical…

At optical wavelengths, an exoplanet's signature is essentially reflected light from the host star - several orders of magnitude fainter. Since it is superimposed on the star spectrum its detection has been a difficult observational…

Earth and Planetary Astrophysics · Physics 2013-10-07 Jorge H. C. Martins , Pedro Figueira , Nuno Santos , Christophe Lovis

The Closeby Habitable Exoplanet Survey (CHES) is dedicated to the astrometric exploration for habitable-zone Earth-like planets orbiting solar-type stars in close proximity, achieving unprecedented micro-arcsecond precision. Given the…

Earth and Planetary Astrophysics · Physics 2024-06-04 Chunhui Bao , Jianghui Ji , Dongjie Tan , Guo Chen , Xiumin Huang , Su Wang , Yao Dong

We present sixteen occultation and three transit light curves for the ultra-short period hot Jupiter WASP-103 b, in addition to five new radial velocity measurements. We combine these observations with archival data and perform a global…

We present images of the galaxy NGC 55 at 24, 70, and 160 micron obtained with the Multiband Imaging Photometer for Spitzer (MIPS) instrument aboard the Spitzer Space Telescope. The new images display the far infrared emission in…

We conducted a search for occultations of bright stars by Kuiper Belt Objects (KBOs) to estimate the density of sub-km KBOs in the sky. We report here the first results of this occultation survey of the outer solar system conducted in June…

Earth and Planetary Astrophysics · Physics 2011-10-27 Federica B. Bianco , Pavlos Protopapas , Brian A. McLeod , Charles R. Alcock , Matthew J. Holman , Matthew J. Lehner

The physical characteristics of Cepheus E (Cep E) `embedded' outflow are analyzed using ISOCAM images in the v=0-0 S(5) 6.91 um and S(3) 9.66 um molecular hydrogen lines. We find that the morphology of the Cep E outflow in the ground…

Astrophysics · Physics 2009-10-30 Alberto Noriega-Crespo , Peter M. Garnavich , Sergio Molinari

Spectra that cover wavelengths from 0.6 to 1.1um are used to examine the behavior of emission and absorption features in a contiguous 22 x 300 arcsec region centered on the nearby dwarf galaxy NGC 55. Based on the relative strengths of…

Astrophysics of Galaxies · Physics 2019-08-07 T. J. Davidge

An Earth orbiting detector sensitive to gamma ray photons will see step-like occultation features in its counting rate when a gamma ray point source crosses the Earth's limb. This is due to the change in atmospheric attenuation of the gamma…

The satellite Linus orbiting the main-belt asteroid (22) Kalliope exhibited occultation and transit events in late 2021. A photometric campaign was organized and observations were taken by the TRAPPIST-South, SPECULOOS-Artemis, OWL-Net, and…

Earth and Planetary Astrophysics · Physics 2023-08-09 M. Brož , J. Ďurech , M. Ferrais , H. -J. Lee , M. -J. Kim , D. -G. Roh , H. -S. Yim , E. Jehin , A. Burdanov , J. de Wit , P. Fatka , J. Hanuš , B. Carry

We present archival Giant Metrewave Radio Telescope (GMRT) observations of two exoplanetary systems, $\tau$ Bo\"otis, and 55 Cancri, at 610 MHz and 150 MHz, respectively. Theoretical models predict these systems to have some of the highest…

Earth and Planetary Astrophysics · Physics 2021-06-30 Mayank Narang , Manoj , P. , C. H. Ishwara Chandra

We quantify the scientific potential for exoplanet imaging with the Mid-infrared E-ELT Imager and Spectrograph (METIS) foreseen as one of the instruments of the European Extremely Large Telescope (E-ELT). We focus on two main science cases:…

Instrumentation and Methods for Astrophysics · Physics 2015-06-19 Sascha P. Quanz , Ian Crossfield , Michael R. Meyer , Eva Schmalzl , Jenny Held

Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed access to the atmospheric, interior, and orbital properties…

We report the detection in Ks-band of the secondary eclipse of the hot Jupiter CoRoT-1b, from time series photometry with the ARC 3.5-m telescope at Apache Point Observatory. The eclipse shows a depth of 0.336+/-0.042 percent and is…

Earth and Planetary Astrophysics · Physics 2011-02-11 Justin C. Rogers , Daniel Apai , Mercedes Lopez-Morales , David K. Sing , Adam Burrows

During our spectroscopic survey of central stars of faint planetary nebulae (PNe), we found that the nucleus of Abell 57 exhibits strong nebular emission lines. Using synthetic narrow-band images, we show that the emission arises from an…

Solar and Stellar Astrophysics · Physics 2024-05-21 Howard E. Bond , Akshat S. Chaturvedi , Robin Ciardullo , Klaus Werner , Gregory R. Zeimann , Michael H. Siegel

The recent discovery of ``ultra-hot'' ($P < 1$ day) Neptunes has come as a surprise: some of these planets have managed to retain gaseous envelopes despite being close enough to their host stars to trigger strong photoevaporation and/or…