cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-v0ql68b
title: 2266453

description:   Target RA (J2000):  41.684669  and deg    Target Dec (J2000):  -31.17964  and deg    Gaia GMag:  11.27    Programme ID:  CH_PR140065   Programme Manager:  WILSON   PI of observing programme:  Benz   Title of programme:  Axis 1 -  Solidifying Planet-Star Composition Links by Studying Why the Internal Structures of Planets Across the Galaxy Vary (YGAL)   Abstract:  Terrestrial planets form through the accretion of building blocks from dust grains to proto-planets. Heavier components sink and form metallic cores whilst pebbles from beyond snow lines deliver volatiles influencing atmospheres or water on Earth-like planets. Understanding the composition of planetary ingredients is vital. Planetary refractory elemental abundances mirror stellar values  the Earth is a devolatised piece of the Sun. If this is universal we would expect a diversity in internal structures and atmospheres of planets orbiting metal-diverse stars. This is currently not well investigated however in recent years tantalising evidence has emerged for metallicity-driven trends in the physical characteristics of super-Earth and sub-Neptune exoplanets. These first pieces of evidence might be pointing towards chemically-diverse formation scenarios impacting the internal structures of planets however this is currently unclear as there are very few well-characterised small planets around metal-poor stars. Therefore this program will refine the radii of a handful of key planets around Galactic thick-disk metal-poor host stars to an unprecedented level in order to solve the current mysteries that we are just starting to unravel.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-v0ym2fu
title: 2184471

description:   Target RA (J2000):  294.661407  and deg    Target Dec (J2000):  31.21920  and deg    Gaia GMag:  7.575    Programme ID:  CH_PR140061   Programme Manager:  LENDL   PI of observing programme:  Benz   Title of programme:  Axis 2 - A Deep search for hot JupIter VAriability (DIVA)   Abstract:  The temporal stability of hot Jupiter atmospheres remains an open question. While there are several tentative detections of changes in the observed planetary occultation depths phase curve shapes or transmission spectra no indisputable evidence exists to date. This program will perform a deep search for variability in the dayside brightness of several hot Jupiters. A detection of clear variability and the measurement of its timescale would open the door to a suite of follow-up studies involving the dynamical behaviour of exoplanet atmospheres.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-v2k4066
title: 2356910

description:   Target RA (J2000):  107.866432  and deg    Target Dec (J2000):  48.33039  and deg    Gaia GMag:  11.39    Programme ID:  CH_PR140067   Programme Manager:  ALIBERT   PI of observing programme:  Benz   Title of programme:  Axis 1 - Probing the architecture-composition-metallicity link (ArchiCHESS)   Abstract:  Planet formation models predict the existence of a link between the orbital architecture of a planetary system the composition of its planets and the metallicity of the central star. This correlation results from the following two processes: On one hand the temporal evolution of the gas content of the protoplanetary disk causes migration of the planets and therefore determines the orbital architecture of the system. On the other hand the composition of the planets depends on the structure and composition of the disk of solids itself related to the gas content of the disk and the solid-to-gas ratio in the disk. This latter quantity is finally correlated with the stellar metallicity. The goal of ArchiCHESS is to observe multi-planetary systems to constrain their architecture (using architecture coefficients of Mishra et al. 2023) and relate this to the water fractions of the planets as well as to the metallicity of the central star.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-v2w84lf
title: 2084065

description:   Target RA (J2000):  196.596161  and deg    Target Dec (J2000):  -11.69257  and deg    Gaia GMag:  13.633    Programme ID:  CH_PR100002   Programme Manager:  VANGROOTEL   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Planet remnants around evolved stars with CHEOPS   Abstract:  This filler programme is to search for planet remnants transiting subdwarf B (sdB) stars which are evolved stars after the first red giant branch.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-v6o16ip
title: 2072781

description:   Target RA (J2000):  189.839218  and deg    Target Dec (J2000):  20.02734  and deg    Gaia GMag:  8.172    Programme ID:  CH_PR140080   Programme Manager:  LELEU   PI of observing programme:  Benz   Title of programme:  Axis 1 - Architecture of Resonant Chains (ARC)   Abstract:  Resonant chains are gold mines for fueling our understanding of planetary systems. The minute details of their architectures encode the history of their formation: the order of the capture of the planets in the chain (Delisle 2017) the local shape of the proto-planetary disc and its dispersal (e.g.  Nesvorny et al 2022) and the long-term evolution of the system through tidal dissipation (e.g. Papaloizou et al 2018). The high multiplicity of these systems also makes them especially valuable to constrain our models of the formation of planetary systems (See Emsenhuber et al 2022 and other papers of the NGPPS series) since all the planets have to form in the same environment and the relative fragility of the configuration ensures that no violent evolution (e.g. close encounters/impacts) occurred after the dissipation of the proto-planetary disc (Leleu et al 2021). In addition the transit timing variations induced by the compactness of the systems allow for precise mass determination down to a few per cent in the case of Trappist-1 (Agol et al 2021). This allows an in-depth characterization of moderately insolated rocky planets and mini-Neptune with a precision which is rarely reachable through radial velocities enabling studies of their interiors and atmospheres. The brightness of the current targets of the program (Gaia band mag 11 for TOI178 12 for K2-138 8.4 for TOI1835) allows to combine RVs and photometric measurements. The two methods have a great synergy as TTVs allow for in-depth characterization o [truncated! Please see actual data for full text]
DOI: 10.57780/esa-v8t0o1p
title: 2209405

description:   Target RA (J2000):  3.955176  and deg    Target Dec (J2000):  13.55619  and deg    Gaia GMag:  11.39    Programme ID:  CH_PR240007   PI of observing programme:  Palethorpe   Title of programme:  CHEOPS can confirm an Earth-sized planet in the habitable zone of a metal-poor M-dwarf neighbour   Abstract:  The number of confirmed exoplanets has grown exponentially since the field was first established almost 30 years ago. However our understanding of how these planets form and evolve has been severely impacted by our ability to precisely characterise certain types of exoplanets. The characterisation of Earth-analogues in particular which are vital in gaining an understanding of our own planet’s history remains a very small pool. One such candidate first discovered by TESS is TOI-6251 b a nearby temperate Earth-sized planet orbiting a metal-poor M-dwarf. However multiples transits could have fallen in TESS’s data gaps – meaning that we are unable to conclusively state the period of the planet as either 12.7 or 25.5 days. Without this parameter the radius of the planet is unable to be precisely constrained meaning that even with our secured time to obtain high-precision RV observations from which the planets mass can be determined we would be unable to model the composition and interior structure. CHEOPS can confirm this habitable zone M dwarf planet however enabling us to further our knowledge on theories of how stellar compositional environment affects planetary internal structure as well as how planet formation and evolution has led to the observed density and radius valleys. With CHEOPS observations we can precisely pinpoint the orbital period and radius of TOI-6251 b – a planet of which the characterisation could unlock ground-breaking studies.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vaa0bap
title: 2187992

description:   Target RA (J2000):  311.289703  and deg    Target Dec (J2000):  -31.34090  and deg    Gaia GMag:  7.84    Programme ID:  CH_PR140071   Programme Manager:  SZABO   PI of observing programme:  Benz   Title of programme:  Axis 1 - Opening the treasure chest of the young golden system AU Mic with CHEOPS   Abstract:  AU Mic is a young (~22 Myr) active M1 star known to host two transiting warm Neptunes close to the 9:4 mean-motion resonance. Transit Timing Variations suggest that an additional resonant planet is likely present in the system. The rotation period of the star and the orbital period of AU Mic b are in a 7:4 spin-orbit commensurability. We also foundThere are systematic variations in the transit depth that correlate with the star's brightness strongly hampering the accuracy on the planetary radii. AU Mic displays differential rotation making it the youngest ``red'' star known to feature equator-to-pole spot migration.  AU Mic is a ``young goldmine'' for planetary and stellar physics a treasure chest just waiting to be opened. Thanks to its short-cadence space-born photometry CHEOPS is uniquely well suited to seize this opportunity. We propose to carry out an intensive CHEOPS observing campaign of AU Mic.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vadcute
title: 2157744

description:   Target RA (J2000):  307.826172  and deg    Target Dec (J2000):  1.09052  and deg    Gaia GMag:  12.413    Programme ID:  CH_PR100002   Programme Manager:  VANGROOTEL   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Planet remnants around evolved stars with CHEOPS   Abstract:  This filler programme is to search for planet remnants transiting subdwarf B (sdB) stars which are evolved stars after the first red giant branch.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vdcckna
title: 2072783

description:   Target RA (J2000):  216.947403  and deg    Target Dec (J2000):  -27.01910  and deg    Gaia GMag:  11.978    Programme ID:  CH_PR100002   Programme Manager:  VANGROOTEL   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Planet remnants around evolved stars with CHEOPS   Abstract:  This filler programme is to search for planet remnants transiting subdwarf B (sdB) stars which are evolved stars after the first red giant branch.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vf9kadw
title: 2041449

description:   Target RA (J2000):  153.073624  and deg    Target Dec (J2000):  -3.74567  and deg    Gaia GMag:  8.33    Programme ID:  CH_PR100018   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Low level variability on short time scales of Mdwarfs   Abstract:  This is a filler program aimimg to characterize the stellar noise (mainly microflares  dips and short lasting oscillations) at short time scales  for Mdwarfs of different level of variability and other active late type stars hosting exoplanets. Being interested to micro-variability on time scales from few seconds to a hours even one CHEOPS orbit can get useful data. The measured parameters - mean variance pooled variaance flares/microflares occurence rate dips occurence rate power spectrum -  will be related  to stellar properties (Teff H-alpha Ca II H and K X-ray and UV fluxes).  Selected targets spans subclasess of late type stars with different level of activity. They have been selected among those  with already know stellar properties (typicall surveyed for exoplanet detection)  and include all  dM / late K and TTau  with  planets.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vgrxjcx
title: 2175604

description:   Target RA (J2000):  304.538849  and deg    Target Dec (J2000):  -1.07572  and deg    Gaia GMag:  9.572    Programme ID:  CH_PR100016   Programme Manager:  LENDL   PI of observing programme:  Benz   Title of programme:  ATMOS.CHAR - Occultations   Abstract:  Scientific Objective: Obtain a representative sample of planetary occultation measurements constraining geometric albedos across a wide parameter space. Uncover trends and provide constrains on atmosphere models in particular with regard to complementary observations.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vj9z1sk
title: 2191242

description:   Target RA (J2000):  348.949036  and deg    Target Dec (J2000):  -10.84969  and deg    Gaia GMag:  12    Programme ID:  CH_PR140080   Programme Manager:  LELEU   PI of observing programme:  Benz   Title of programme:  Axis 1 - Architecture of Resonant Chains (ARC)   Abstract:  Resonant chains are gold mines for fueling our understanding of planetary systems. The minute details of their architectures encode the history of their formation: the order of the capture of the planets in the chain (Delisle 2017) the local shape of the proto-planetary disc and its dispersal (e.g.  Nesvorny et al 2022) and the long-term evolution of the system through tidal dissipation (e.g. Papaloizou et al 2018). The high multiplicity of these systems also makes them especially valuable to constrain our models of the formation of planetary systems (See Emsenhuber et al 2022 and other papers of the NGPPS series) since all the planets have to form in the same environment and the relative fragility of the configuration ensures that no violent evolution (e.g. close encounters/impacts) occurred after the dissipation of the proto-planetary disc (Leleu et al 2021). In addition the transit timing variations induced by the compactness of the systems allow for precise mass determination down to a few per cent in the case of Trappist-1 (Agol et al 2021). This allows an in-depth characterization of moderately insolated rocky planets and mini-Neptune with a precision which is rarely reachable through radial velocities enabling studies of their interiors and atmospheres. The brightness of the current targets of the program (Gaia band mag 11 for TOI178 12 for K2-138 8.4 for TOI1835) allows to combine RVs and photometric measurements. The two methods have a great synergy as TTVs allow for in-depth characterization of  [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vlgb27i
title: 2070267

description:   Target RA (J2000):  252.426086  and deg    Target Dec (J2000):  -19.54281  and deg    Gaia GMag:  12    Programme ID:  CH_PR230026   PI of observing programme:  Edwards   Title of programme:  Ephemeris Refinement of Key Targets for the ESA-Ariel Mission   Abstract:  The ESA-Ariel mission seeks to observe the atmospheres of around 1000 exoplanets. To maximise the science yield of the mission the sample of planets studied must be as diverse as possible probing all areas of the exoplanet population. To allow for this the catalogue of planets from which the Ariel sample is chosen must be significantly larger. For each of these potential targets a likely requirement is that number of key parameters are well characterised. One piece of knowledge that is undeniably obligatory is the predicted transit time of the planet in question. Keeping track of such a large number of worlds necessitates a well-structured follow-up programme and so the Ariel consortium has launched ExoClock which allows professional and amateur astronomers from around the world to support this effort. Nevertheless there are some planets which simply cannot be studied from the ground and for which TESS data is also of insufficient quality so another solution is required. Here we propose to use the excellent photometric performance of CHEOPS to study 9 key worlds for the Ariel mission. By observing these targets CHEOPS will be ensuring they are available for future atmospheric characterisation and thereby providing key support for another ESA mission.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-voer3dm
title: 2166246

description:   Target RA (J2000):  317.551544  and deg    Target Dec (J2000):  10.73888  and deg    Gaia GMag:  8.242    Programme ID:  CH_PR140061   Programme Manager:  LENDL   PI of observing programme:  Benz   Title of programme:  Axis 2 - A Deep search for hot JupIter VAriability (DIVA)   Abstract:  The temporal stability of hot Jupiter atmospheres remains an open question. While there are several tentative detections of changes in the observed planetary occultation depths phase curve shapes or transmission spectra no indisputable evidence exists to date. This program will perform a deep search for variability in the dayside brightness of several hot Jupiters. A detection of clear variability and the measurement of its timescale would open the door to a suite of follow-up studies involving the dynamical behaviour of exoplanet atmospheres.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vpqzntm
title: 2227034

description:   Target RA (J2000):  63.578049  and deg    Target Dec (J2000):  11.97021  and deg    Gaia GMag:  12.1    Programme ID:  CH_PR140069   Programme Manager:  SZABO   PI of observing programme:  Benz   Title of programme:  Axis 3 - Photometric Transients in Dusty Debris Disks   Abstract:  We observe systems with warm dust disks regardless to the orientation of the disk but with positive detections of photometric transients from the disk with TESS. The targets will be selected from the results of Ansdell et al 2020 and Gaidos et al. 2022 in respect to the expected efficiency of CHEOPS observations and if possible simultaneously to TESS observations. The simultaneous CHEOPS+TESS multiband data will give us the first two-band space photometry of scattering dust in distant solar systems.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vqep0x5
title: 2044930

description:   Target RA (J2000):  154.901169  and deg    Target Dec (J2000):  19.87000  and deg    Gaia GMag:  8.21    Programme ID:  CH_PR100018   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Low level variability on short time scales of Mdwarfs   Abstract:  This is a filler program aimimg to characterize the stellar noise (mainly microflares  dips and short lasting oscillations) at short time scales  for Mdwarfs of different level of variability and other active late type stars hosting exoplanets. Being interested to micro-variability on time scales from few seconds to a hours even one CHEOPS orbit can get useful data. The measured parameters - mean variance pooled variaance flares/microflares occurence rate dips occurence rate power spectrum -  will be related  to stellar properties (Teff H-alpha Ca II H and K X-ray and UV fluxes).  Selected targets spans subclasess of late type stars with different level of activity. They have been selected among those  with already know stellar properties (typicall surveyed for exoplanet detection)  and include all  dM / late K and TTau  with  planets.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vr2l1cc
title: 2266630

description:   Target RA (J2000):  41.188507  and deg    Target Dec (J2000):  -32.21089  and deg    Gaia GMag:  11.212    Programme ID:  CH_PR140073   Programme Manager:  LAM   PI of observing programme:  Benz   Title of programme:  Axis 1 - Gas Contents of Low Mass Planets (GCLMP)   Abstract:  The priority questions for planetary sciences are aimed at understanding the origin of planetary systems and life. Planet formation is a complex process that starts with the condensation of matter in a disc of molecular gas and dust. Planetesimals grow into planets accrete material lose volatiles chemically evolve and outgas contract as they cool down and finally are destroyed or survive when the star dies ejecting back material into the interstellar medium and possibly starting again a new cycle. Most of the evidence that we have on these processes comes from the study of our Solar System and astrophysical observations of neighboring stars. The detection and characterization of extrasolar planets revealed a diversity of planetary systems beyond the Solar System but these discoveries challenged existing planet formation theories. Precisely characterized bulk properties of exoplanets help place constraints on the varying formation conditions and evolution processes in order to understand the origin of exoplanets. In this program we propose the characterization of long-period (P > 15 days) low-mass gas-rich planets (defined as planets with radii between 2 and 4 Earth radii) by refining their planetary radii.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vw37mah
title: 2299048

description:   Target RA (J2000):  107.866432  and deg    Target Dec (J2000):  48.33039  and deg    Gaia GMag:  11.39    Programme ID:  CH_PR140065   Programme Manager:  WILSON   PI of observing programme:  Benz   Title of programme:  Axis 1 -  Solidifying Planet-Star Composition Links by Studying Why the Internal Structures of Planets Across the Galaxy Vary (YGAL)   Abstract:  Terrestrial planets form through the accretion of building blocks from dust grains to proto-planets. Heavier components sink and form metallic cores whilst pebbles from beyond snow lines deliver volatiles influencing atmospheres or water on Earth-like planets. Understanding the composition of planetary ingredients is vital. Planetary refractory elemental abundances mirror stellar values  the Earth is a devolatised piece of the Sun. If this is universal we would expect a diversity in internal structures and atmospheres of planets orbiting metal-diverse stars. This is currently not well investigated however in recent years tantalising evidence has emerged for metallicity-driven trends in the physical characteristics of super-Earth and sub-Neptune exoplanets. These first pieces of evidence might be pointing towards chemically-diverse formation scenarios impacting the internal structures of planets however this is currently unclear as there are very few well-characterised small planets around metal-poor stars. Therefore this program will refine the radii of a handful of key planets around Galactic thick-disk metal-poor host stars to an unprecedented level in order to solve the current mysteries that we are just starting to unravel.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-vwfk1ge
title: 2187762

description:   Target RA (J2000):  357.302185  and deg    Target Dec (J2000):  2.40122  and deg    Gaia GMag:  8.15    Programme ID:  CH_PR100018   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Low level variability on short time scales of Mdwarfs   Abstract:  This is a filler program aimimg to characterize the stellar noise (mainly microflares  dips and short lasting oscillations) at short time scales  for Mdwarfs of different level of variability and other active late type stars hosting exoplanets. Being interested to micro-variability on time scales from few seconds to a hours even one CHEOPS orbit can get useful data. The measured parameters - mean variance pooled variaance flares/microflares occurence rate dips occurence rate power spectrum -  will be related  to stellar properties (Teff H-alpha Ca II H and K X-ray and UV fluxes).  Selected targets spans subclasess of late type stars with different level of activity. They have been selected among those  with already know stellar properties (typicall surveyed for exoplanet detection)  and include all  dM / late K and TTau  with  planets.    [truncated! Please see actual data for full text]