cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-l66ni8l
title: 2048706

description:   Target RA (J2000):  210.193512  and deg    Target Dec (J2000):  -30.58357  and deg    Gaia GMag:  9.867    Programme ID:  CH_PR140076   Programme Manager:  PATEL   PI of observing programme:  Benz   Title of programme:  Axis2 - Terminators   Abstract:  Exoplanetary atmospheres are 3D objects and various physical processes make them inhomogeneous over different parts of the planet. In particular several studies have demonstrated that different thermal structures and wind patterns over the morning and evening terminator can produce an inhomogeneous cloud coverage over the atmosphere. However a common assumption made while performing transmission spectroscopy of exoplanets is of a homogeneous atmosphere. Considering such an inhomogeneous atmosphere as a homogeneous one can lead to biases in retrieved atmospheric properties. Inhomogeneities in the atmosphere also leave an impact on broadband photometry. In this program we aim to detect this effect directly on the transit lightcurve of three planets. The magnitude of this effect could be as large as 1000 ppm for suitable targets which CHEOPS should be able to detect comfortably. While inhomogeneity can be in chemical structure or aerosol properties we mainly aim to put constraints on asymmetric cloud coverage with CHEOPS observations. We have identified WASP-54 b HAT-P-30 b and WASP-131 b as being the best candidates for detection due to their atmospheric transmission signal transit duration and temperature. Our observations would pave a way for future observations with spectroscopic capabilities to constrain the inhomogeneous atmospheres of these planets.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-l8oai84
title: 2131522

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-lbek592
title: 2173465

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: 10.15468/dl.cahscg
title: Occurrence Download

description: A dataset containing 90 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rhodolaena leroyana G.E.Schatz, Lowry & A.-E.Wolf"
 ]
}

 The dataset includes 90 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0097765-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-lbeturh
title: 2048563

description:   Target RA (J2000):  160.066467  and deg    Target Dec (J2000):  -8.51072  and deg    Gaia GMag:  12.8    Programme ID:  CH_PR230035   PI of observing programme:  Merin   Title of programme:  Dynamical masses and bulk compositions of newly-found TESS and ASTEP-confirmed sub-Neptunes   Abstract:  The Sub-Neptunes recently detected by the TESS Kepler and K2 surveys continue to challenge our understanding of planetary systems in particular in relationship to the radius valley. Their physical nature also constitutes a mystery with their bulk compositions still allowing them to be either rocky water worlds or gas-giants (e.g. Rogers and Seager 2010) possibly in connection to photoevaporation of their initial atmospheres as they migrate towards the stars (e.g. Owens and Wu 2013) or due to core-powered mass-loss (e.g. Rogers et al. 2021). We request high-quality CHEOPS observations to dynamically determine the planet masses and radii via transit timing variation (TTV) measurements to identify prime targets for atmospheric follow-up characterisation with JWST to put constraints on their formation histories and to search for further non-transiting and still undetected long-period planets via the TTVs. The five planets are the unique best targets for this science case in CHEOPS AO-03 to our knowledge (observable both by CHEOPS and ASTEP not observed by CHEOPS yet and not in the CHEOPS Reserved Target List).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-lc302si
title: 2093980

description:   Target RA (J2000):  197.317459  and deg    Target Dec (J2000):  -60.30836  and deg    Gaia GMag:  8.09    Programme ID:  CH_PR100017   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Recovering ephemeris   Abstract:  There are a number (about 2 tens) of transiting planetst of interest for follow-up characterizing measurements (JWST E-ELT) whose ephemeris must be recovered before going with large facilities and this can be done by CHEOPS.  It is proposed to monitor one transit per target  the observing window centered on the transit time predicted by the best available ephemeris and lasting two times the uncertainty on T0 plus the transit duration. Target list and target priority shall be modified according to results from K2 and TESS campaigns.    [truncated! Please see actual data for full text]
DOI: 10.5281/zenodo.10926385
title: Ptolemaida coal mines

description: Coal mines at the Kozani-Ptolemais basin area (Greece), suppling coal to the four power plants providing almost half of the electricity requirements in Greece at the time.
DOI: 10.5281/zenodo.10926386
title: Ptolemaida coal mines

description: Coal mines at the Kozani-Ptolemais basin area (Greece), suppling coal to the four power plants providing almost half of the electricity requirements in Greece at the time.
DOI: 10.57780/esa-les5m6p
title: 2333205

description:   Target RA (J2000):  142.179245  and deg    Target Dec (J2000):  -14.68642  and deg    Gaia GMag:  9.62    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-lgrpc7p
title: 2326916

description:   Target RA (J2000):  142.743408  and deg    Target Dec (J2000):  26.54000  and deg    Gaia GMag:  9.584    Programme ID:  CH_PR140075   Programme Manager:  AKINSANMI   PI of observing programme:  Benz   Title of programme:  Axis 1 - Giant planets around EVOlved Stars (EVOS)   Abstract:  Only a handful of planets have been found orbiting evolved stars and even fewer transiting with short-period orbits. Studying giant planets around evolved stars provides useful information on the impact of stellar evolution on planets their atmospheres and the architecture of planetary systems in general. These planets can also contribute to understanding the mechanism for late-stage planet inflation. It is thus necessary to have a good statistical sample of well-characterized giant planets around evolved stars. This program performs follow-up of TESS planet candidates around evolved stars to refine the radii of detected planets and also detect additional planets in order to populate this parameter space and allow better statistical study.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-llt8tcr
title: 2200732

description:   Target RA (J2000):  330.567291  and deg    Target Dec (J2000):  -17.55414  and deg    Gaia GMag:  12.629    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-lm54utd
title: 2269758

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-lmhtviu
title: 2310923

description:   Target RA (J2000):  93.959236  and deg    Target Dec (J2000):  16.02391  and deg    Gaia GMag:  11.78    Programme ID:  CH_PR240002   PI of observing programme:  Vach   Title of programme:  CHEOPS transits of two 48-Myr mini-Neptunes in the Taurus-Orion II moving group   Abstract:  Within the first 100 Myr planets undergo critical evolutionary events. Observing young planetary systems allow us to gain insights into the physical processes that shape the mature planetary population. TIC 434398831 is a pre-main-seqeunce Sun-like star (G7V G = 11.7893) hosting two transiting mini-Neptunes. Gaia kinematics place TIC 434398831 in the 48-Myr Taurus-Orion II moving group. We identified two planetary candidates TIC 434398831.01 (Rp = 3.65 Rearth P = 3.61 days) and TIC 434398831.02 (Rp = 5.41 Rearth P = 6.12 days) through an independent search for young planets located in known moving groups from the TESS's Full Frame Images (FFIs) light curves. We propose to use 4 visits of CHEOPS to observe two transits of both TIC 434398831.01 and TIC 434398831.02 which is necessary for the confirmation of this exemplar system as high-precision space-based photometry is needed to overcome the photometric modulations of the young star. Our CHEOPS observations will have the capability to anchor the optical transit depths of the two young planets which will enable us to distinguish between different cloud and haze scenarios in future atmospheric observations.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-lnatmwb
title: 2299052

description:   Target RA (J2000):  90.159462  and deg    Target Dec (J2000):  0.13178  and deg    Gaia GMag:  11.23    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-lqii6sl
title: 2263383

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-lqw57oq
title: 2299191

description:   Target RA (J2000):  73.124420  and deg    Target Dec (J2000):  -36.25717  and deg    Gaia GMag:  11.76    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-lrunxzg
title: 2249084

description:   Target RA (J2000):  14.080420  and deg    Target Dec (J2000):  -38.94869  and deg    Gaia GMag:  12.09    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-ls03vzf
title: 2326492

description:   Target RA (J2000):  104.214043  and deg    Target Dec (J2000):  22.59573  and deg    Gaia GMag:  10.665    Programme ID:  CH_PR230034   PI of observing programme:  Edwards   Title of programme:  Rescuing Longer Period TESS Planet Candidates for Future Atmospheric Characterisation   Abstract:  Keeping track of the colossal number of new exoplanet detections is becoming ever more difficult. Yet if we wish to conduct a thorough characterisation of these worlds by studying its atmosphere for instance we must be sure of when the planet is going to transit. Due to the short observing sectors of TESS (< 30 days) our knowledge of the ephemerides of these worlds is quickly decaying. In fact by the time most planet confirmation papers are published the uncertainty on the transit time is often into the tens of minutes and when followed-up large shifts are often seen in the transit times. The situation is even worse for longer period planets which are also more rarely found by the TESS mission. Hence we propose to conduct timely observations of seven of the best longer period TESS planet candidates for atmospheric characterisation. These data will ensure that our knowledge of their ephemeris remains up-to-date and so will facilitate the possibility for atmospheric characterisation in the near-future. CHEOPS is the only facility capable of these observations and the dataset proposed will be of great value to the exoplanet community.    [truncated! Please see actual data for full text]