Articles by Zahed Wahhaj

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Zahed Wahhaj

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The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results

21 January 2025 by A. Chomez and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results

21 January 2025 by A. Chomez and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results

21 January 2025 by A. Chomez and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

PDS 70 unveiled by star-hopping: total intensity, polarimetry and mm-imaging modeled in concert

17 April 2024 by Zahed Wahhaj and others

Earth and Planetary Astrophysics

Increasing the raw contrast of VLT/SPHERE with dark hole techniques III. Broadband reference differential imaging of HR\,4796 using a four-quadrant phase mask

27 March 2024 by Raphael Galicher and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

The SPHERE view of the Taurus star-forming region

4 March 2024 by Antonio Garufi and others

Astrophysics of Galaxies, Earth and Planetary Astrophysics

The SPHERE view of the Chamaeleon I star-forming region

4 March 2024 by Christian Ginski and others

Astrophysics of Galaxies, Earth and Planetary Astrophysics

Protoplanetary disks in K_s-band total intensity and polarized light

12 October 2023 by Bin Ren and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

Empirical Contrast Model for High-Contrast Imaging -- A VLT/SPHERE Case Study

2 October 2023 by Benjamin Courtney-Barre and others

Instrumentation and Methods for Astrophysics

Improving VLT/SPHERE without additional hardware: Comparing quasi-static correction strategies

31 May 2023 by Axel Potier and others

Instrumentation and Methods for Astrophysics

Direct imaging discovery of a super-Jovian around the young Sun-like star AF Leporis

20 February 2023 by Robert J. De Rosa and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

Increasing the raw contrast of VLT/SPHERE with the dark-hole technique. II. On-sky wavefront correction and coherent differential imaging

24 August 2022 by Axel Potier and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Updated orbital monitoring and dynamical masses for nearby M-dwarf binaries

19 August 2022 by Per Calissendorff and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

Orbital and dynamical analysis of the system around HR 8799. New astrometric epochs from VLT/SPHERE and LBT/LUCI

21 July 2022 by Alice Zurlo and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

SPHERE adaptive optics performance for faint targets

25 April 2022 by M. Jones and others

Instrumentation and Methods for Astrophysics

Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor. IV. Temporal stability of non-common path aberrations in VLT/SPHERE

21 February 2022 by Arthur Vigan and others

Instrumentation and Methods for Astrophysics

Lessons learned from SPHERE for the astrometric strategy of the next generation of exoplanet imaging instruments

29 July 2021 by Anne-Lise Maire and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Revealing asymmetrical dust distribution in the inner regions of HD 141569

15 July 2021 by Garima Singh and others

Earth and Planetary Astrophysics

The SPHERE infrared survey for exoplanets (SHINE) -- II. Observations, Data reduction and analysis Detection performances and early-results

5 March 2021 by Mehdi Langlois and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

Limits on the presence of planets in systems with debris disks: HD 92945 and HD 107146

17 February 2021 by Diego Mesa and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

First light of the VLT planet finder SPHERE. III. New spectrophotometry and astrometry of the HR8799 exoplanetary system

29 January 2021 by Alice Zurlo and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

A search for a 5th planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE

20 January 2021 by Zahed Wahhaj and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

A survey of the linear polarization of directly imaged exoplanets and brown dwarf companions with SPHERE-IRDIS. First polarimetric detections revealing disks around DH Tau B and GSC 6214-210 B

11 January 2021 by R. G. Van Holstein and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

A triple star in disarray -- Multi-epoch observations of T Tauri with VLT-SPHERE and LBT-LUCI

12 November 2020 by Michael Kasper and others

Solar and Stellar Astrophysics

The SPHERE infrared survey for exoplanets (SHINE). III. The demographics of young giant exoplanets below 300 au with SPHERE

13 July 2020 by Arthur Vigan and others

Earth and Planetary Astrophysics, Astrophysics of Galaxies

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): A close low mass companion to ET Cha

10 July 2020 by Christian Ginski and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

Increasing the raw contrast of VLT/SPHERE with the dark hole technique. I. Simulations and validation on the internal source

5 May 2020 by Axel Potier and others

Instrumentation and Methods for Astrophysics

Searching for the near infrared counterpart of Proxima c using multi-epoch high contrast SPHERE data at VLT

14 April 2020 by Raffaele Gratton and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

An unusually large gaseous transit in a debris disc

10 October 2019 by Daniela Iglesias and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

SPHERE: the exoplanet imager for the Very Large Telescope

3 October 2019 by Jean-Luc Beuzit and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

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Earth and Planetary Astrophysics Solar and Stellar Astrophysics Instrumentation and Methods for Astrophysics Astrophysics of Galaxies