96 citations · 821 across the 29 of their papers we have counts for
29 papers
Semi supervised GAN for smart microscopy, fast and data efficient cell cycle classification
Rajeev Manick, Youssef El Habouz, Maëlle Guillout +8
Modern optical microscopes are fully motorised; however, transforming them into truly smart systems requires real-time adjustment of acquisition settings in response to detected ob…
A new way to find symbiotic stars: accretion disc detection with continuum survey photometry
A. B. Lucy, J. L. Sokoloski, G. J. M. Luna +10
Symbiotic stars are binaries in which a cool and evolved star of luminosity class I-III accretes onto a smaller companion. However, direct accretion signatures like disc flickering…
Long period modulation of the classical T Tauri star CI Tau: evidence for an eccentric close-in massive planet at 0.17 au
R. Manick, A. P. Sousa, J. Bouvier +13
Detecting planets within protoplanetary disks around young stars is essential for understanding planet formation and evolution. However, planet detection using the radial velocity…
Star-disk interactions in the strongly accreting T Tauri Star S CrA N
H. Nowacki, E. Alecian, K. Perraut +11
Aims : We aimed at constraining the accretion-ejection phenomena around the strongly-accreting Northern component of the S CrA young binary system (S CrA N) by deriving its magneti…
WR 63: A multiple system (O+O)+WR ?
A. -N. Chené, L. Mahy, E. Gosset +3
The spectrum of the Wolf-Rayet (WR) star WR 63 contains spectral lines of two different O stars that show regular radial velocity (RV) variations with amplitudes of ~160 and ~225 k…
Discovery of the most luminous quasar of the last 9 Gyr
Christopher A. Onken, Samuel Lai, Christian Wolf +8
We report the discovery of a bright (g = 14.5 mag (AB), K = 11.9 mag (Vega)) quasar at redshift z = 0.83 -- the optically brightest (unbeamed) quasar at z > 0.4. SMSS J114447.77-43…
Evolution of Hen\,3-1357, the Stingray Nebula
Miriam Peña, Mudumba Parthasarathy, Francisco Ruiz-Escobedo +1
The spectroscopic evolution of Hen\,3-1357, the Stingray Nebula, is presented by analysing data from 1990 to 2021. High resolution data obtained in 2021 with South African Large Te…
The binary central star of the bipolar pre-planetary nebula IRAS 08005-2356 (V510 Pup)
Rajeev Manick, Brent Miszalski, Devika Kamath +5
Current models predict that binary interactions are a major ingredient for the formation of bipolar planetary nebulae (PNe) and pre-planetary nebulae (PPNe). Despite years of radia…
Multiplicity of Galactic Luminous Blue Variable stars
L. Mahy, C. Lanthermann, D. Hutsemékers +7
Context. Luminous Blue Variables (LBVs) are thought to be in a transitory phase between O stars on the main-sequence and the Wolf-Rayet stage. Recent studies suggest that they migh…
Two's company, three's a crowd: SALT reveals the likely triple nature of the nucleus of the extreme abundance discrepancy factor planetary nebula Sp 3
B. Miszalski, R. Manick, T. Rauch +3
The substantial number of binary central stars of planetary nebulae (CSPNe) now known (50) has revealed a strong connection between binarity and some morphological features i…
GK Car and GZ Nor: Two low-luminous, depleted RV Tauri stars
I. Gezer, H. Van Winckel, R. Manick +1
We performed a photometric and spectroscopic analysis of two RV Tauri stars GK Car and GZ Nor. Both objects are surrounded by hot circumstellar dust. Their pulsation periods, deriv…
The spectroscopic binaries RV Tauri and DF Cygni
Rajeev Manick, Devika Kamath, Hans Van Winckel +7
Aim: The focus of this paper is on two famous but still poorly understood RV Tauri stars: RV Tau and DF Cyg. We aim at confirming their suspected binary nature and deriving their o…
The post-common-envelope binary nucleus of the planetary nebula IC~4776: Neither an anomalously long orbital period nor a Wolf-Rayet binary
B. Miszalski, R. Manick, H. Van Winckel +1
The orbital period distribution of close binary stars consisting of a white dwarf and a main-sequence star (WDMS) is a powerful observational constraint on population synthesis mod…
Barium & related stars and their white-dwarf companions II. Main-sequence and subgiant stars
A. Escorza, D. Karinkuzhi, A. Jorissen +12
Barium (Ba) dwarfs and CH subgiants are the less-evolved analogues of Ba and CH giants. They are F- to G-type main-sequence stars polluted with heavy elements by a binary companion…
The post-common-envelope X-ray binary nucleus of the planetary nebula NGC 2392
Brent Miszalski, Rajeev Manick, Hans Van Winckel +1
The Chandra X-ray Observatory has detected relatively hard X-ray emission from the central stars of several planetary nebulae (PNe). A subset have no known late-type companions, ma…
Resolved imaging of the AR Puppis circumbinary disk
S. Ertel, D. Kamath, M. Hillen +14
Circumbinary disks are common around post-asymptotic giant branch (post-AGB) stars with a stellar companion on orbital time scales of a few 100 to few 1000 days. The presence of a…
The evolutionary nature of RV Tauri stars in the SMC and LMC
Rajeev Manick, Hans Van Winckel, Devika Kamath +2
Based on their stellar parameters and the presence of a mid-IR excess due to circumstellar dust, RV Tauri stars have been classified as post-AGB stars. Our recent studies, however,…
SALT HRS discovery of the binary nucleus of the Etched Hourglass Nebula MyCn 18
Brent Miszalski, Rajeev Manick, Joanna Mikołajewska +2
The shaping of various morphological features of planetary nebulae (PNe) is increasingly linked to the role of binary central stars. Identifying a binary within a PN offers a power…
The perturbed sublimation rim of the dust disk around the post-AGB binary IRAS08544-4431
J. Kluska, M. Hillen, H. Van Winckel +4
Context: Post-Asymptotic Giant Branch (AGB) binaries are surrounded by stable dusty and gaseous disks similar to the ones around young stellar objects. Whereas significant effort i…
SALT HRS discovery of a long period double-degenerate binary in the planetary nebula NGC 1360
B. Miszalski, R. Manick, J. Mikołajewska +3
Whether planetary nebulae (PNe) are predominantly the product of binary stellar evolution as some population synthesis models (PSM) suggest remains an open question. Around 50 shor…
A mid-IR interferometric survey with MIDI/VLTI: resolving the second-generation protoplanetary disks around post-AGB binaries
M. Hillen, H. Van Winckel, J. Menu +7
We present a mid-IR interferometric survey of the circumstellar environment of a specific class of post-Asymptotic Giant Branch (post-AGB) binaries. For this class the presence of…
Establishing binarity amongst Galactic RV Tauri stars with a disc
Rajeev Manick, Hans Van Winckel, Devika Kamath +2
This study is a contribution in comprehending the role of binarity upon late stages of stellar evolution. We determine the binary status of six Galactic RV Tauri stars, namely DY O…
Cannibals in the thick disk: the young rich stars as evolved blue stragglers
P. Jofre, A. Jorissen, S. Van Eck +8
Spectro-seismic measurements of red giants enabled the recent discovery of stars in the thick disk that are more massive than 1.4 M_sun. While it has been claimed that most of thes…
Detailed homogeneous abundance studies of 14 Galactic s-process enriched post-AGB stars: In search of lead (Pb)
Kenneth De Smedt, Hans Van Winckel, Devika Kamath +4
This paper is part of a larger project in which we systematically study the chemical abundances of Galactic and extragalactic post-asymptotic giant branch (post-AGB) stars. Lead (P…