cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-88d2cz0
title: 2209411

description:   Target RA (J2000):  26.632746  and deg    Target Dec (J2000):  2.70057  and deg    Gaia GMag:  9.395    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-8b8rf18
title: 2079289

description:   Target RA (J2000):  187.684875  and deg    Target Dec (J2000):  -33.22231  and deg    Gaia GMag:  10.52    Programme ID:  CH_PR110048   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  EXPLORE - Duos: Recovering long period duo-transiting planets with CHEOPS   Abstract:  The high-precision yet short-duration of TESS sectors means that many long-period planet candidates are found at high-SNR but on unknown periods. One specific type of such candidates are Duotransits - candidates with two transits separated by a large gap (as is the case for around 400 TESS candidates observing in the primary and extended missions). Here Cheops is perfectly placed to recover the periods of such long period planets by observing potential period aliases. In this program we propose to use this method to recover the periods of super-Earths  and  Neptunes around bright stars with Cheops.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8br551l
title: 2319671

description:   Target RA (J2000):  164.776077  and deg    Target Dec (J2000):  40.98361  and deg    Gaia GMag:  8.09    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-8fhprv8
title: 2056056

description:   Target RA (J2000):  182.400162  and deg    Target Dec (J2000):  -3.55222  and deg    Gaia GMag:  13.342    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-8jaldos
title: 2094792

description:   Target RA (J2000):  242.573746  and deg    Target Dec (J2000):  -24.99035  and deg    Gaia GMag:  10.91    Programme ID:  CH_PR100025   Programme Manager:  NASCIMBENI   PI of observing programme:  Benz   Title of programme:  MR.IMPROVE - Mass-Radius relation in multiple systems   Abstract:  Scientific objective: obtaining MR relation in systems of low-mass planets (in particular with gas-poor planets)    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8kv8c21
title: 2263939

description:   Target RA (J2000):  50.131763  and deg    Target Dec (J2000):  42.60708  and deg    Gaia GMag:  10.819    Programme ID:  CH_PR440018   PI of observing programme:  Dattilo   Title of programme:  Confirmation of four planet candidates around an extremely young star   Abstract:  We request 64 orbits of CHEOPS observations to confirm and characterize the planetary system orbiting the star TOI-6109 a young approximately 80Myr-old Sun-like star in the Alpha Persei cluster. It hosts at least 4 transiting planet candidates all about the size of Neptune orbiting within 16 day orbital periods. The planets orbit near mean motion resonances so transit timing variations should reveal their masses. The system's youth and near-resonant configuration present a unique opportunity to test theoretical models of atmospheric mass loss.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8mh1v7b
title: 2292856

description:   Target RA (J2000):  68.593750  and deg    Target Dec (J2000):  43.03742  and deg    Gaia GMag:  12.3    Programme ID:  CH_PR140068   Programme Manager:  EGGER   PI of observing programme:  Benz   Title of programme:  Axis 1 - Constraining the abundance of water in hot planets (HotWatermelon)   Abstract:  Planets located close enough to their star experience evaporation which leads to a dichotomy in the possible gas content of these objects. These planets either contain more than around one percent of gas (in mass) or no gas at all (see Owen and Wu 2017). This dichotomy when expressed in term of mass-radius relation implies the existence of a region in the mass-radius diagram of hot planets where dry planets cannot exist. We propose to observe planets that could lie in this region with CHEOPS. Combining a precise radius and mass will allow us to identify planets in this forbidden region hence showing that they have to contain volatiles most likely water. Our data combined with future JWST observations will also constrain the efficiency of evaporation.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8mhmp04
title: 2055944

description:   Target RA (J2000):  164.189407  and deg    Target Dec (J2000):  9.67390  and deg    Gaia GMag:  12.152    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-8n7cjl3
title: 2252946

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-8pzfdnt
title: 2293394

description:   Target RA (J2000):  27.314547  and deg    Target Dec (J2000):  21.70349  and deg    Gaia GMag:  11.09    Programme ID:  CH_PR149000   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  SoM - CHeops And TEss vAlidate Unconfirmed eXoplanets   Abstract:  The vast majority of TESS Objects of Interest remain unconfirmed in part due to a lack of follow-up observations. There are so many such targets that even with strict filters to ensure targets are small planets several unconfirmed TESS candidates are transiting at any one time. CHATEAUX proposes to use time-critical P3 Cheops observations of a filtered  and  ranked set of TOIs which would be able to be scheduled between higher-priority time-critical Cheops observations. We expect these filler observations will produce useful scientific observations of TOI candidates including ephemeris improvements TTV detection improved radius precision and improved false positive probabilities (thanks to both ruling our chromaticity and centroid shifts).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8rs5a2d
title: 2286321

description:   Target RA (J2000):  42.435375  and deg    Target Dec (J2000):  71.75323  and deg    Gaia GMag:  8.033    Programme ID:  CH_PR140074   Programme Manager:  AKINSANMI   PI of observing programme:  Benz   Title of programme:  Axis 3 - Measuring Oblateness and rapid Rotation in Exoplanets (MORE)   Abstract:  Planets can attain non-spherical shapes as a result of the forces acting upon them. Centrifugal forces due to rapid planetary rotation lead to an equatorial bulge referred to as oblateness. Saturn has the largest oblateness within the Solar system owing to its fast rotation and low density. Therefore measuring the oblateness can provide information about the rotation rate of a planet and its interior structure which can in turn provide insight into the dynamical history of the planet. This program will leverage the precision of CHEOPS to probe for large oblateness indicative of super-rapid rotation rate in selected planets around bright stars.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8sry9yw
title: 2356898

description:   Target RA (J2000):  106.841789  and deg    Target Dec (J2000):  -11.43689  and deg    Gaia GMag:  10.37    Programme ID:  CH_PR149000   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  SoM - CHeops And TEss vAlidate Unconfirmed eXoplanets   Abstract:  The vast majority of TESS Objects of Interest remain unconfirmed in part due to a lack of follow-up observations. There are so many such targets that even with strict filters to ensure targets are small planets several unconfirmed TESS candidates are transiting at any one time. CHATEAUX proposes to use time-critical P3 Cheops observations of a filtered  and  ranked set of TOIs which would be able to be scheduled between higher-priority time-critical Cheops observations. We expect these filler observations will produce useful scientific observations of TOI candidates including ephemeris improvements TTV detection improved radius precision and improved false positive probabilities (thanks to both ruling our chromaticity and centroid shifts).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8taxdmb
title: 2231604

description:   Target RA (J2000):  61.331638  and deg    Target Dec (J2000):  20.15709  and deg    Gaia GMag:  10.08    Programme ID:  CH_PR230032   PI of observing programme:  Damasso   Title of programme:  Pinning down orbital period transit ephemeris and radius of the infant planet V1298 Tau e   Abstract:  V1298 Tau is a very young (20±10 Myr) star that hosts four planets discovered by Kepler/K2. It is a unique laboratory to test planet formation and evolution theories right after system's birth. The outermost planet V1298 Tau e was observed in transit only once by K2 and a second transit was detected later on by TESS thus orbital period and ephemeris are presently not yet constrained. This greatly affects the analysis of radial velocities and the mass determination of the planet. We are intensively studying and monitoring V1298 Tau. Since 2019 we are intensively following it up with HARPS-N and CARMENES to determine planet masses and bulk densities with focus on planet e. So far our published results provided preliminary estimates which need to be revised once the transit ephemeris of planet e will be accurately known. K2 and TESS observations also revealed that the transit depth is hampered by stellar activity thus observing transits with CHEOPS will allow for a more accurate measurement needed to pin down the bulk density of the planet. CHEOPS will provide crucial results to characterise physical and architectural properties of the whole planetary system. CHEOPS observations will complement our large dataset of radial velocities allowing for fully exploitation. The results will be crucial to carry on a thorough study of the formation and dynamical evolution of the system at the earliest phases and to predict the future evolution of planets' atmospheric structure.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8u3svto
title: 2316213

description:   Target RA (J2000):  50.131763  and deg    Target Dec (J2000):  42.60708  and deg    Gaia GMag:  10.819    Programme ID:  CH_PR440018   PI of observing programme:  Dattilo   Title of programme:  Confirmation of four planet candidates around an extremely young star   Abstract:  We request 64 orbits of CHEOPS observations to confirm and characterize the planetary system orbiting the star TOI-6109 a young approximately 80Myr-old Sun-like star in the Alpha Persei cluster. It hosts at least 4 transiting planet candidates all about the size of Neptune orbiting within 16 day orbital periods. The planets orbit near mean motion resonances so transit timing variations should reveal their masses. The system's youth and near-resonant configuration present a unique opportunity to test theoretical models of atmospheric mass loss.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8ut3m4o
title: 2185180

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-8vd846y
title: 2353434

description:   Target RA (J2000):  129.572037  and deg    Target Dec (J2000):  -23.55022  and deg    Gaia GMag:  10.74    Programme ID:  CH_PR140079   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  Axis 1 - DETECTIVE CHEOPS: Confirming small transiting planets on long orbital periods   Abstract:  Transiting planets orbiting bright stars are key for the characterisation of exoplanet atmospheres and internal structures. However the vast majority of such planets have short (P<20d) orbital periods. This is because long-period transiting planets do not produce consecutive transits in photometric survey data. However these planets are some of the most interesting as unlike their interior companions they are less affected by the gravitational and electromagnetic effects of their host stars. This programme will use CHEOPS to efficiently detect characterisable small transiting planets on long orbital periods. We will do this by leveraging as much external information as possible to constrain orbital periods - from nonconsecutive transits (i.e. mono- duo- or trio-transit candidates) in photometric survey data such as K2 or TESS and from radial velocities where available. Such techniques have been successful in the CHEOPS nominal mission with for example the photometrically-constrained TOI-2076 c  and  d (Osborn et al 2022) or the monotransit+RV case of TOI-561 d  and  e (Lacedelli et al 2021  and  2022). These planets once found by CHEOPS may also form interesting science targets for other parts of the GTO extended mission science case such as studying the architectural diversity of exoplanetary systems and even searches for exomoon  and  rings.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8vvw9e4
title: 2239535

description:   Target RA (J2000):  68.593750  and deg    Target Dec (J2000):  43.03742  and deg    Gaia GMag:  12.3    Programme ID:  CH_PR140068   Programme Manager:  EGGER   PI of observing programme:  Benz   Title of programme:  Axis 1 - Constraining the abundance of water in hot planets (HotWatermelon)   Abstract:  Planets located close enough to their star experience evaporation which leads to a dichotomy in the possible gas content of these objects. These planets either contain more than around one percent of gas (in mass) or no gas at all (see Owen and Wu 2017). This dichotomy when expressed in term of mass-radius relation implies the existence of a region in the mass-radius diagram of hot planets where dry planets cannot exist. We propose to observe planets that could lie in this region with CHEOPS. Combining a precise radius and mass will allow us to identify planets in this forbidden region hence showing that they have to contain volatiles most likely water. Our data combined with future JWST observations will also constrain the efficiency of evaporation.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8wis45r
title: 2292666

description:   Target RA (J2000):  59.771751  and deg    Target Dec (J2000):  6.92461  and deg    Gaia GMag:  10.91    Programme ID:  CH_PR149000   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  SoM - CHeops And TEss vAlidate Unconfirmed eXoplanets   Abstract:  The vast majority of TESS Objects of Interest remain unconfirmed in part due to a lack of follow-up observations. There are so many such targets that even with strict filters to ensure targets are small planets several unconfirmed TESS candidates are transiting at any one time. CHATEAUX proposes to use time-critical P3 Cheops observations of a filtered  and  ranked set of TOIs which would be able to be scheduled between higher-priority time-critical Cheops observations. We expect these filler observations will produce useful scientific observations of TOI candidates including ephemeris improvements TTV detection improved radius precision and improved false positive probabilities (thanks to both ruling our chromaticity and centroid shifts).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-8x30qzi
title: 2045083

description:   Target RA (J2000):  196.879257  and deg    Target Dec (J2000):  -31.08387  and deg    Gaia GMag:  12.786    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: 10.15468/dl.cdjfyw
title: Occurrence Download

description: A dataset containing 5616 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rourea coccinea (Thonn. ex Schum.) Hook.fil. ex Hook."
 ]
}

 The dataset includes 5616 records from 128 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0097740-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-8yrdoxx
title: 2322874

description:   Target RA (J2000):  126.616035  and deg    Target Dec (J2000):  10.08037  and deg    Gaia GMag:  8.819    Programme ID:  CH_PR240015   PI of observing programme:  Grouffal   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-906ybf8
title: 2274573

description:   Target RA (J2000):  46.060631  and deg    Target Dec (J2000):  43.55794  and deg    Gaia GMag:  9.71    Programme ID:  CH_PR140079   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  Axis 1 - DETECTIVE CHEOPS: Confirming small transiting planets on long orbital periods   Abstract:  Transiting planets orbiting bright stars are key for the characterisation of exoplanet atmospheres and internal structures. However the vast majority of such planets have short (P<20d) orbital periods. This is because long-period transiting planets do not produce consecutive transits in photometric survey data. However these planets are some of the most interesting as unlike their interior companions they are less affected by the gravitational and electromagnetic effects of their host stars. This programme will use CHEOPS to efficiently detect characterisable small transiting planets on long orbital periods. We will do this by leveraging as much external information as possible to constrain orbital periods - from nonconsecutive transits (i.e. mono- duo- or trio-transit candidates) in photometric survey data such as K2 or TESS and from radial velocities where available. Such techniques have been successful in the CHEOPS nominal mission with for example the photometrically-constrained TOI-2076 c  and  d (Osborn et al 2022) or the monotransit+RV case of TOI-561 d  and  e (Lacedelli et al 2021  and  2022). These planets once found by CHEOPS may also form interesting science targets for other parts of the GTO extended mission science case such as studying the architectural diversity of exoplanetary systems and even searches for exomoon  and  rings.    [truncated! Please see actual data for full text]