The paper discusses the bibliographic identities of the persons who are creators or producers, or are the subject of a work. Today, in cataloguing, there are two ways to treat a person who uses more ...than one bibliographic identity, pseudonyms or other forms of the name: 1. as several separate persons, with an authorized form for every (individual) name with additional controlled access points for variant forms of the name, 2. as one person, with a single authorized access point (uniform heading) that would gather complete works of the person or a corporate body. The other names (personas) are treated as the variant form of the name. Heteronyms (the term heteronym is taken from linguistics) are illustrated by various examples such as the writer Fernando Pessoa, who established over seventy bibliographic identities with their own physical appearance, biography and different styles of writing, or Olja Savicevic-Ivancevic, perhaps the most famous person in Croatia using a heteronym. Unlike the pseudonym, which is just the writer's alias, the heteronym changes not only the name but also the nature and characteristics of the person. Exonyms and endonyms (the terms exonym and endonym are taken from ethnolinguistics) are illustrated by the examples of controlled access point for the entity person and entity place. The paper also presents cataloging practices of the national libraries in the world and in Croatia regarding the use of multiple names for the same creator and their attitudes to exonyms and endonyms. The quoted examples of bibliographic records from the world national libraries show title authority data made in national languages and in Latin, too.
The goal of informatization of Croatian libraries is creating a union database of bibliographic and authority records through the process of shared cataloging, which would ultimately result in ...creating an integrated online catalogue. The main preconditions for achieving this goal are organizing programs for cooperative cataloging, with predefined cataloguing procedures which would save time and ensure high quality of records. The paper presents the results of the cooperative cataloging on the example of the network of libraries that use the library system ZaKi. The table shows the data with the total number of bibliographical records contributed by each library, and the number of records used by other libraries in the period from 2011 to 2013. Special attention is given to the three county libraries: Zagreb City Libraries, the City Library Rijeka, and the City Library Marko Marulic Split.
Rad obuhvaća osobe koje su uključene u stvaranje i izradu djela ili su predmet djela. S osobom koja je ustanovila ili prisvojila više bibliografskih identiteta, pseudonima ili oblika imena može se ...postupiti dvojako: kao sa zasebnim personama s autoriziranim oblikom za svaku personu i dodatnim nadziranim pristupnicama za neusvojene oblike imena ili kao s jednom personom za pojedinca koja postaje autorizirani oblik, a s imenima ostalih persona postupa se kao s neusvojenim oblicima imena pojedinca. Heteronimi, izrazi preuzeti iz lingvistike, prikazuju se na različitim primjerima poput stvaratelja Fernanda Pessoe koji je ustanovio preko sedamdeset bibliografskih identiteta s vlastitim fizičkim izgledom, biografijom i različitim stilovima pisanja, i kod nas najpoznatije Olje Savičević-Ivančević. Za razliku od pseudonima koji je samo izmišljeno ime pisca, heteronim, osim imena, mijenja i karakter i osobine osobe. Egzonimi i endonimi, izrazi preuzeti iz etnolingvistike, prikazuju se na primjerima nadziranih pristupnica za ime entiteta osoba i za ime entiteta mjesto. Prikazuje se odnos pojedinih nacionalnih knjižnica u svijetu i u Hrvatskoj prema uporabi više imena za istog stvaratelja i odnos prema egzonimima i endonimima. Navode se i primjeri autoriziranih podataka za naslove izrađenih na nacionalnim jezicima i na latinskom jeziku u svjetskim nacionalnim knjižnicama.
U radu se prikazuje povezanost podataka o odgovornosti i vrste autorstva u bibliografskom zapisu. Na tu povezanost prvo se ukazuje pregledom odredaba o podatcima o odgovornosti i elemenata koji se ...odnose na vrstu autorstva u našim temeljnim propisima, PPIAK-u i objedinjenom ISBD-u, te prikaz vrste autorstva u bibliografskim formatima UNIMARC i MARC 21, koji su temelj većine naših skupnih
kataloga. Nakon toga dan je kratak pregled elemenata FR konceptualnih modela i na njima temeljenih nacionalnih kataložnih pravilnika, kao primjer promjena koje konceptualni modeli donose povezivanjem podataka bibliografskog zapisa i postupaka korisnika u pretraživanju kataloga. Potreba ujednačene primjene koda za vrstu autorstva ilustrirana je karakterističnim primjerima bibliografskih zapisa. Na kraju
se, napose u kontekstu semantičkog weba, procjenjuje koliko kod za vrstu autorstva doprinosi potpunosti i točnosti informacija koje bibliografski zapis daje korisnicima.
Vrlo često spominjan cilj informatizacije hrvatskih knjižnica je stvaranje zajedničke baze bibliografskih i normativnih zapisa kroz kooperativnu katalogizaciju, a što bi u konačnosti rezultiralo ...skupnim katalogom. Jedan od glavnih uvjeta za postizanje ovog cilja je organiziranje kooperativne katalogizacije kao niza postupaka i procedura koje rezultiraju stvaranjem zajedničke bibliografske i normativne baze i time omogućavaju uštede u vremenu, te osiguravaju kvalitetu. U ovom radu predstavljen je program kooperativne katalogizacije unutar mreže knjižnica koje koriste integrirani knjižnični program ZaKi. Opisane su procedure i postupci te predstavljeni rezultati rada kooperativne katalogizacije za broj izrađenih i korištenih bibliografskih zapisa u zajedničkoj bazi za razdoblje od 2011. do 2013. godine. Posebna pozornost posvećena je doprinosu triju županijskih knjižnica: Knjižnica grada Zagreba, Gradske knjižnice Rijeka i Gradske knjižnice Marka Marulića Split.
Abstract
TOI-561 is a galactic thick-disk star hosting an ultra-short-period (0.45-day-orbit) planet with a radius of 1.37
R
⊕
, making it one of the most metal-poor (Fe/H = −0.41) and oldest (≈10 ...Gyr) sites where an Earth-sized planet has been found. We present new simultaneous radial velocity (RV) measurements from Gemini-N/MAROON-X and Keck/HIRES, which we combined with literature RVs to derive a mass of
M
b
= 2.24 ± 0.20
M
⊕
. We also used two new sectors of TESS photometry to improve the radius determination, finding
R
b
= 1.37 ± 0.04
R
⊕
and confirming that TOI-561 b is one of the lowest-density super-Earths measured to date (
ρ
b
= 4.8 ± 0.5 g cm
−3
). This density is consistent with an iron-poor rocky composition reflective of the host star’s iron and rock-building element abundances; however, it is also consistent with a low-density planet with a volatile envelope. The equilibrium temperature of the planet (∼2300 K) suggests that this envelope would likely be composed of high mean molecular weight species, such as water vapor, carbon dioxide, or silicate vapor, and is likely not primordial. We also demonstrate that the composition determination is sensitive to the choice of stellar parameters and that further measurements are needed to determine whether TOI-561 b is a bare rocky planet, a rocky planet with an optically thin atmosphere, or a rare example of a nonprimordial envelope on a planet with a radius smaller than 1.5
R
⊕
.
Abstract
In recent years, the discovery of increasing numbers of rocky, terrestrial exoplanets orbiting nearby stars has drawn increased attention to the possibility of studying these planets’ ...atmospheric and surface properties. This is especially true for planets orbiting M dwarfs, whose properties can best be studied with existing observatories. In particular, the minerological composition of these planets and the extent to which they can retain their atmospheres in the face of intense stellar irradiation both remain unresolved. Here, we report the detection of the secondary eclipse of the terrestrial exoplanet GJ 1252b, obtained via 10 eclipse observations using the Spitzer Space Telescope’s IRAC2 4.5
μ
m channel. We measure an eclipse depth of
149
−
32
+
25
ppm, corresponding to a dayside brightness temperature of
1410
−
125
+
91
K. This measurement is consistent with the prediction for a bare rock surface. Comparing the eclipse measurement to a large suite of simulated planetary spectra indicates that GJ 1252b has a surface pressure of ≲10 bar, i.e., substantially thinner than the atmosphere of Venus. Assuming energy-limited escape, even a 100 bar atmosphere would be lost in <1 Myr, far shorter than our gyrochronological age estimate of 3.9 ± 0.4 Gyr. The expected mass loss could be overcome by mantle outgassing, but only if the mantle’s carbon content were >7% by mass—over two orders of magnitude greater than that found in Earth. We therefore conclude that GJ 1252b has no significant atmosphere. Model spectra with granitoid or feldspathic surface composition, but with no atmosphere, are disfavored at >2
σ
. The eclipse occurs just +1.4
−
1.0
+
2.8
minutes after orbital phase 0.5, indicating
e
cos
ω
= +0.0025
−
0.0018
+
0.0049
, consistent with a circular orbit. Tidal heating is therefore likely to be negligible with regard to GJ 1252b’s global energy budget. Finally, we also analyze additional, unpublished TESS transit photometry of GJ 1252b, which improves the precision of the transit ephemeris by a factor of 10, provides a more precise planetary radius of 1.180 ± 0.078
R
⊕
, and rules out any transit-timing variations with amplitudes ≳1 minute.
Abstract
We report observations of the recently discovered warm Neptune TOI-674 b (5.25
R
⊕
, 23.6
M
⊕
) with the Hubble Space Telescope’s Wide Field Camera 3 instrument. TOI-674 b is in the Neptune ...desert, an observed paucity of Neptune-size exoplanets at short orbital periods. Planets in the desert are thought to have complex evolutionary histories due to photoevaporative mass loss or orbital migration, making identifying the constituents of their atmospheres critical to understanding their origins. We obtained near-infrared transmission spectroscopy of the planet’s atmosphere with the G141 grism. After extracting, detrending, and fitting the spectral light curves to measure the planet’s transmission spectrum, we used the petitRADTRANS atmospheric spectral synthesis code to perform retrievals on the planet’s atmosphere to identify which absorbers are present. These results show moderate evidence for increased absorption at 1.4
μ
m due to water vapor at 2.9
σ
(Bayes factor = 15.8), as well as weak evidence for the presence of clouds at 2.2
σ
(Bayes factor = 4.0). TOI-674 b is a strong candidate for further study to refine the water abundance, which is poorly constrained by our data. We also incorporated new TESS short-cadence optical photometry, as well as Spitzer/IRAC data, and refit the transit parameters for the planet. We find the planet to have the following transit parameters:
R
p
/
R
*
= 0.1135 ± 0.0006,
T
0
= 2458544.523792 ± 0.000452 BJD, and
P
= 1.977198 ± 0.00007 day. These measurements refine the planet radius estimate and improve the orbital ephemerides for future transit spectroscopy observations of this highly intriguing warm Neptune.
TOI-561 is a galactic thick disk star hosting an ultra-short period (0.45 day orbit) planet with a radius of 1.37 R\(_{\oplus}\), making it one of the most metal-poor (Fe/H = -0.41) and oldest ...(\(\sim\)10 Gyr) sites where an Earth-sized planet has been found. We present new simultaneous radial velocity measurements (RVs) from Gemini-N/MAROON-X and Keck/HIRES, which we combined with literature RVs to derive a mass of M\(_{b}\)=2.24 \(\pm\) 0.20 M\(_{\oplus}\). We also used two new Sectors of TESS photometry to improve the radius determination, finding R\(_{b}\)=\(1.37 \pm 0.04 R_\oplus\), and confirming that TOI-561 b is one of the lowest-density super-Earths measured to date (\(\rho_b\)= 4.8 \(\pm\) 0.5 g/cm\(^{3}\)). This density is consistent with an iron-poor rocky composition reflective of the host star's iron and rock-building element abundances; however, it is also consistent with a low-density planet with a volatile envelope. The equilibrium temperature of the planet (\(\sim\)2300 K) suggests that this envelope would likely be composed of high mean molecular weight species, such as water vapor, carbon dioxide, or silicate vapor, and is likely not primordial. We also demonstrate that the composition determination is sensitive to the choice of stellar parameters, and that further measurements are needed to determine if TOI-561 b is a bare rocky planet, a rocky planet with an optically thin atmosphere, or a rare example of a non-primordial envelope on a planet with a radius smaller than 1.5 R\(_{\oplus}\).
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