cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-n378f8h
title: 2306485

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-n40z9ok
title: 2048591

description:   Target RA (J2000):  169.205673  and deg    Target Dec (J2000):  6.99256  and deg    Gaia GMag:  13.005    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-n4ayjlu
title: 2325317

description:   Target RA (J2000):  97.800423  and deg    Target Dec (J2000):  3.47056  and deg    Gaia GMag:  9.85    Programme ID:  CH_PR140084   Programme Manager:  ULMER-MOLL   PI of observing programme:  Benz   Title of programme:  Axis 1 - CompoSubNeptu   Abstract:  Sub-Neptunes are the most common type of known planets in the galactic neighborhood. In spite of that their interior composition and therefore their origin has to date not been constrained observationally. The reason is the degeneracy in possible compositions that can explain their observed properties. Two end member compositions are theoretically suggested: dry rocky cores + about 1% of H/He or ocean planets containing about 50% water in mass. The former is suggested by evolutionary evaporation models the later by formation models. These compositions correspond to fundamentally different in situ formation versus orbital migration pathways. If observationally it should turn out that close-in sub-Neptunian planets are indeed water worlds this could be seen as one of the largest successes of planet formation theory. The opposite case would mean that one or several elements of our current understanding of the origin of planets is fundamentally flawed. It is therefore of paramount importance to answer the fundamental question “What are sub-Neptunes made of?”. With this program we propose a three-faceted approach to answer this question: 1) is there a grouping in density? 2) Preparing for the JWST opportunity. 3) Is the ice mass fraction correlated with the stellar composition? We propose to use CHEOPS for the precise radius determination of a carefully chosen sample of TESS planet candidate whose radii make them susceptible to be either ocean worlds or rocky cores with H/He envelopes.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-n6sgs9q
title: 2097091

description:   Target RA (J2000):  239.962296  and deg    Target Dec (J2000):  -28.06180  and deg    Gaia GMag:  11.38    Programme ID:  CH_PR230029   PI of observing programme:  Saba   Title of programme:  Constraining Refractory Species and Characterising the Stellar Environment of the Inflated hot-Jupiter WASP-17 b   Abstract:  In the known population of exoplanets puffy hot-Jupiters are extremely rare and yet crucial in order to understand planetary formation and evolution. Their large radii coupled with the high S/N ratio achievable thanks to their extended atmospheres makes them the perfect target for current observational facilities. In this restricted pool of planets WASP-17b is an ideal case study. With an equilibrium temperature of ~1800 K this inflated hot-Jupiter is expected to display signatures of metal oxides and hydrides in absorption. However recent studies showed that the host star a F6 dwarf appears to be considerably more active than expected. The ability of stellar spots and faculae to mimic absorption features in a planetary atmosphere or hide them altogether is one of the most serious obstacles in exoplanet transmission studies. The high-precision photometer aboard CHEOPS is the optimal instrument to monitor the transit of WASP-17b for two main reasons. Being centred at 0.6 µm the CHEOPS photometer targets specifically the wavelengths where the stellar spectrum peaks and where optical absorbers display strong absorption features. Hence CHEOPS data is essential to solve the ongoing disputes on this planetary system regarding the activity of the host star and the presence of refractory elements in the atmosphere of the companion planet. At least 11 transits with a very high coverage (>65%) are expected to occur during AO-3 making WASP-17 b an excellent target for CHEOPS.  </ul [truncated! Please see actual data for full text]
DOI: 10.57780/esa-n8sy6zi
title: 2355255

description:   Target RA (J2000):  95.416206  and deg    Target Dec (J2000):  11.25172  and deg    Gaia GMag:  11.27    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: 10.15468/dl.egsw6d
title: Occurrence Download

description: A dataset containing 104 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Roepera leptopetala (E.Mey. ex Sond.) Beier & Thulin"
 ]
}

 The dataset includes 104 records from 21 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0097768-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-nc63d5k
title: 2071903

description:   Target RA (J2000):  258.762115  and deg    Target Dec (J2000):  18.34077  and deg    Gaia GMag:  9.34    Programme ID:  CH_PR100024   Programme Manager:  CABRERA   PI of observing programme:  Benz   Title of programme:  MR.IMPROVE - Gas content of low-mass planets   Abstract:  Constraining the gas content of planets in the 1-10 Mearth regime to know if there are two populations (gas-poor versus gas-rich) or a continuum of possile gas content. The first case would point towards some 'catastrophic' event (e.g. giant impact) or threshold effect (e.g. a low critical mass) governing the gas content of planets.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-nc6yi9n
title: 2323317

description:   Target RA (J2000):  156.837921  and deg    Target Dec (J2000):  34.39103  and deg    Gaia GMag:  9.8    Programme ID:  CH_PR140084   Programme Manager:  ULMER-MOLL   PI of observing programme:  Benz   Title of programme:  Axis 1 - CompoSubNeptu   Abstract:  Sub-Neptunes are the most common type of known planets in the galactic neighborhood. In spite of that their interior composition and therefore their origin has to date not been constrained observationally. The reason is the degeneracy in possible compositions that can explain their observed properties. Two end member compositions are theoretically suggested: dry rocky cores + about 1% of H/He or ocean planets containing about 50% water in mass. The former is suggested by evolutionary evaporation models the later by formation models. These compositions correspond to fundamentally different in situ formation versus orbital migration pathways. If observationally it should turn out that close-in sub-Neptunian planets are indeed water worlds this could be seen as one of the largest successes of planet formation theory. The opposite case would mean that one or several elements of our current understanding of the origin of planets is fundamentally flawed. It is therefore of paramount importance to answer the fundamental question “What are sub-Neptunes made of?”. With this program we propose a three-faceted approach to answer this question: 1) is there a grouping in density? 2) Preparing for the JWST opportunity. 3) Is the ice mass fraction correlated with the stellar composition? We propose to use CHEOPS for the precise radius determination of a carefully chosen sample of TESS planet candidate whose radii make them susceptible to be either ocean worlds or rocky cores with H/He envelopes.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-nch8u50
title: 2044768

description:   Target RA (J2000):  144.555298  and deg    Target Dec (J2000):  23.54670  and deg    Gaia GMag:  7.748    Programme ID:  CH_PR100009   Programme Manager:  SIMON   PI of observing programme:  Benz   Title of programme:  FEATURE.CHAR - Moon and Rings   Abstract:  Science objectives: Detect the first exomoon/ ring system arouns an exoplanet .    Targets:    Moons are stable over > 1Gyr for long period planets. Giant exoplanets are the preferred candidates. For Rings targets are giant planets beyond the snow line so best candidates are also giant planets with long periods. Another arguments suggest that short-period planets with identified Na K absorption bands may host volcanic moons (Oza et al. 2020). So we will also targets such planets with already identified Na K absorption.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ncmn1hf
title: 2267115

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-ncvjsys
title: 2189296

description:   Target RA (J2000):  311.289703  and deg    Target Dec (J2000):  -31.34090  and deg    Gaia GMag:  7.84    Programme ID:  CH_PR130057   Programme Manager:  SZABO   PI of observing programme:  Benz   Title of programme:  Pinning down a young planetary system: CHEOPS observations of AU Mic (CHAUMic)   Abstract:  We propose to carry out an intensive in-transit and out-of-transit CHEOPS observing campaign of the golden target AU Mic aiming at: • constraining the TTV signals of AU Mic b and c and measuring their masses. High-precision radial velocity observations of AU Mic are hampered by the activity of the star as recently shown by Zicher et al. 2022 (MNRAS 512 3060) who measured the masses of planet b and c with a precision of “only” 43 % and 30 % using more than 100 HARPS measurements evenly spread across one year. Conversely CHEOPS have proven to be very effective in measuring planet masses of near-resonant transiting systems such as TOI-1130 b and c for which a precision of ?9 % has been achieved exploiting the TTV method. Our program requires transit observations of planet b and c to be carried out in July August. • studying the evolution time-scale of active regions across the transit cord using AU Mic b as a “scanner”. Unbiased measurements of Rp/R? can be determined only by modeling the transit light curves along with the map of the occulted (and unocculted see below) spots. This requires CHEOPS multiple observations of the transits of AU Mic b at the 4 possible star-planet configurations. By observing spot-crossing events of transits occurring at the same stellar longitudes as in 2020 and 2021’s CHEOPS observations we will also assess whether the distribution of spots has evolved or not. On the other hand transit observations at stellar longitudes that have not yet b [truncated! Please see actual data for full text]
DOI: 10.57780/esa-neewosb
title: 2210473

description:   Target RA (J2000):  54.183800  and deg    Target Dec (J2000):  28.55046  and deg    Gaia GMag:  12.19    Programme ID:  CH_PR240024   PI of observing programme:  Vach   Title of programme:  Confirmation of the first planet to be associated with the Pleiades cluster   Abstract:  The processes that drive planet formation and evolution within the first billion years are key in sculpting the planet population we observe today. Observing young planetary systems is the only opportunity to characterize these processes as they happen in real time. The Pleiades open cluster is one of the most well aged stellar groups at 120 Myr making it the ideal parent population to anchor planet evolution models. We propose to use CHEOPS to observe two transits of the first planetary candidate TOI-5358.01 kinematically affiliated with the Pleiades group. TOI-5358.01 is a mini-Neptune (P = 2.66 d Rp = 2.754 Rearth) orbiting the young K4V star TOI-5358 originally discovered by TESS. CHEOPS observations are critical in the confirmation and characterization of the system and will enable us to distinguish between different atmospheric characteristics such as clouds and haze in future transmission spectroscopy observations.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-neuhltm
title: 2083303

description:   Target RA (J2000):  182.166397  and deg    Target Dec (J2000):  -8.74718  and deg    Gaia GMag:  11.64    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-nf1bvpp
title: 2157281

description:   Target RA (J2000):  278.631775  and deg    Target Dec (J2000):  35.66152  and deg    Gaia GMag:  10.454    Programme ID:  CH_PR140063   Programme Manager:  BARROS   PI of observing programme:  Benz   Title of programme:  Axis 3 - Measuring tides that shape planetary systems (TIDES)   Abstract:  Ultra-short orbital period planets suffer from intense tidal forces which lead to a deformation of the planet's shape (Correia 2014  Barros et al. 2022) and shrinkage of the planet's orbit. Measuring the tidal deformation of the planet allows us to estimate the second-degree fluid Love number and gain insight into the planet's internal structure. Moreover measuring the tidal decay timescale allows us to estimate the stellar tidal quality factor which is key to constraining stellar physics. Therefore studying tidal effects in ultra-short orbital period planets gives us a wealth of information on planet-to-star tidal interactions that shape planetary systems. We also propose to estimate the tidal decay of a few hot-Jupiters for which we expect a measurable orbital period decrease within the next 3 years. The longer baseline allowed by the CHEOPS extension will be crucial for our ability to measure the tidal decay of some systems. During the CHEOPS nominal mission we achieved a breakthrough on the direct detection of the tidal deformation of exoplanets. Building on these results we also propose to better constrain the tidal deformation of WASP-103b and WASP-12b directly from the transit deformation signature (similar to  Barros et al. 2022) and also from the signature in the phase curve (similar to Akinsanmi et al. in prep.).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-nfhaclx
title: 2073760

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-ngg6fei
title: 2242737

description:   Target RA (J2000):  348.581573  and deg    Target Dec (J2000):  44.50886  and deg    Gaia GMag:  10.93    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-ni35vdn
title: 2306978

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-nikeyr3
title: 2227024

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-njr8ri1
title: 2039315

description:   Target RA (J2000):  133.149200  and deg    Target Dec (J2000):  28.33083  and deg    Gaia GMag:  5.714    Programme ID:  CH_PR100006   Programme Manager:  DEMORY   PI of observing programme:  Benz   Title of programme:  ATMOS.CHAR - 55 Cancri e   Abstract:  The aim of this programme is to obtain orbital phase-curves of 55 Cnc e. These observations contribute to obtain longitudinal maps of this super-Earth to constrain its 1D geometric albedo distribution. Such observations provide insights into the climate patterns of exoplanets and in the JWST era CHEOPS is the only high-precision photometry facility able to achieve quasi-continuous staring phase-curve observations at visible wavelengths.    [truncated! Please see actual data for full text]