• The Bulletin of The Korean Astronomical Society
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• v.40 no.2
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• pp.41.2-41.2
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• 2015

We have performed deep wide-field CCD photometry of the young open cluster IC 1805 in the famous star forming region W4, and obtained photometric data for more than 91,000 stars in the field of IC 1805 based on observations with the 3.6m CFHT and the AZT-22 1.5m telescope at Maidanak Astronomical Observatory in Uzbekistan. The photometric data cover an area $43^{\prime}{\times}45^{\prime}$ which is far larger and far deeper than any other optical observations made for the cluster. In order to select the young stellar objects with mid-IR excess emission, we have performed mid-IR photometry of the cluster using the archival images obtained with the Spitzer Space Telescope IRAC and MIPS instruments. From a preliminary analysis of the data, we determined the reddening law ($R_V=3.02{\pm}0.05$), distance modulus ($V_0-M_V=11.9{\pm}0.2$), and the spatial distribution of members.

• The Korean Journal of Archival Studies
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• no.66
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• pp.317-355
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• 2020

Moon Ik-hwan's prison letters are valuable historical materials managed by the Moon Ik-hwan House of Unification, reflecting an aspect of modern and contemporary South Korea. He wrote these prison letters during a period of approximately 11 years and three months. Today about 800 of them remain and are in an urgent need for measures to ensure their long-term preservation and Use. This study set out to introduce their current state that had been made to the public only in fragments, analyze their characteristics as objects of records management, and propose directions and strategies to provide them as part of online service. For these purposes, the investigator analyzed Moon's personal life and life in prison as the backgrounds of their creation and examined their unique characteristics as prison letters according to the scope and size, recipients, reproduction and circulation process, and the medium of lettercards. Based on these efforts, the study shed new light on the significance of use in private archives and provided a case of online utilization tasks and strategies based on the characteristics of letters as one of the representative types of personal records.

• The Korean Journal of Archival Studies
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• no.24
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• pp.173-214
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• 2010

Intangible Culture Heritage can show its face only by representation of people in no form. Accordingly, if there are not people who represent Intangible Culture Heritage or records which is about Intangible Culture Heritage, we can see its appearance any more. Now on, Intangible Culture Heritage preservation policy of Korea is incomplete, so polices that Intangible Culture Heritage keeps on its values permanently, are essential. This study starting from these critical mind, suggests documentation method of Gangneung Danoje. This study designs documentation plans of Intangible Culture Heritage considering whore its whole lifecyle that produced, keened, used, preserved. To document the Gangneung Danoje, the target of documentation is selected and divided as ceremony, transmit from generation to generation, related data. the ceremony and transmit from generation to generation of Gangneung Danoje are recognized by building the business process, so records that produces whenever business act produce, subjects who produce the records, the spot where records are produced. A related data is not the target of documentation produced as continual business, but something to worthy of keeping as records is selected. Through investigation of the ceremony, transmit from generation to generation, and related data, this study selects objects to documentation and suggests method of documentation and subjects who document records.

• Journal of Korean Society of Archives and Records Management
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• v.15 no.3
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• pp.55-86
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• 2015

This paper aims to interrogate the layered and dependent structure of the modern and official document management in Korea and Japan from 1894 to 1910. The focus of its study is on documents related with the strategic infrastructure construction in Jeonbuk Province through an analysis from the perspective of historic archival studies. For this study, the chosen period was when Japanese imperialists were on their way to seize the Korean official archival system. As such, our objects are the documents connected with the institution of the Japanese resident-general system in Korea and its infrastructural constructions as part of Japan's war plans of invading the continent. Among others, we examined the documents of the strategic infrastructure construction around Jeonju in Jeonbuk Province by Imperial Japan, in order to wage the Sino-Japanese War and subdue the Donghak Peasant Revolution. More specifically, we illuminate the sources and organization of the approval of the original documents in a higher level that is relevant to the determination of political, financial, and personnel matters, which were designed for the Japanese governmental rule over Korea from the era of the Gabo Reform to the period of the Japanese resident-generals, as well as analyze the actual states of the official documents ina lower level, which were drawn up by Korean government and the resident-general. Consequently, this paper suggests that official Korean archival system at this time must be understood under the context of a layered and dependent structure within the vertical connections between Korea and Japan, and not from the point of view of a national history.

• The Bulletin of The Korean Astronomical Society
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• v.40 no.2
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• pp.34.1-34.1
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• 2015

Deep archival V and I image data taken with Hubble Space Telescope have been used to investigate compact stellar objects in an anemic spiral galaxy NGC 4921 in the Coma cluster. We resolve a significant fraction of globular clusters based on the reconstructed master drizzled image data. The color distribution of globular clusters (GCs) shows a clear bimodal distribution. The blue and red GC populations show significantly different radial number density profiles. We derive the turnover magnitudes of globular cluster luminosity functions (GCLFs) for the blue and red GCs in the bulge and halo of NGC 4921. We also derive the GCLFs of two Coma cD galaxies, NGC 4874 and NGC 4889, and one coma S0 galaxy, NGC 4923. Turnover magnitudes of GCs in four galaxies agree well within uncertainties. A mean distance of four Coma galaxies is derived from turnover magnitudes of GCLFs. A value of the Hubble constant is determined from this distance estimate and radial velocity of the Coma. We discuss implications of our results in relation with the recent determinations of the Hubble constant.

• Publications of The Korean Astronomical Society
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• v.30 no.2
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• pp.283-287
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• 2015

Within the context of the hugely successful SAGE-LMC and SAGE-SMC surveys, Spitzer photometry observations of the Large and Small Magellanic Clouds have revealed millions of infrared point sources in each galaxy. The brightest infrared sources are generally dust producing and mass-losing evolved stars, and several tens of thousands of such stars have been classified. After photometrically classifying these objects, the dust production by several kinds of evolved stars - such as Asymptotic Giant Branch stars and Red Supergiants - can be determined. SAGE-Spec is the spectroscopic follow-up to the SAGE-LMC survey, and it has obtained Spitzer-IRS $5-40{\mu}m$ spectroscopy of about 200 sources in the LMC. Combined with archival data from other programs, observations at a total of ~1000 pointings have been obtained in the LMC, while ~250 IRS pointings were observed in the SMC. Of these, a few hundred pointings represent dust producing and mass-losing evolved stars, covering a range in colors, luminosities, and thus mass-loss rates. Red Supergiants and O-rich and C-rich AGB stars - the main dust producers - are well represented in the spectroscopic sample. This paper will summarize what we know about the mineralogy of dust producing evolved stars, and discuss their relative importance in the total dust budget.

• The Korean Journal of Archival Studies
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• no.26
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• pp.151-172
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• 2010

This study try to establish the method on the archiving of a village experimentally. For this study three standpoints were investigated. We discriminate between the theory and practice on general archives management and village archiving. We should grasp that the practice of village archiving is a means to the movement of village community reconstruction. And we clear up the point that village archiving head for the community ownership and the communication. This study clarified what were the constituent units in a village and what were the archives that were producted by the constituent units in a village. It is helpful for the development of the strategy on a village to identify concretely the objects of village archiving. The main body who lead the village archiving is not archivist only. But he should be a man who serve his community and have the competency to deal with archives professionally simultaneously. The suggestion of village archiving in this study has the meaning that Korean archivists should get over the model of elite so that seek after new way of the going down to the archiving fields. village, community, the ordinance for the reconstruct of the beautiful village community, activistic archivist, archiving movement going down to the village fields, archiving by participation of community.

• The Korean Journal of Archival Studies
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• no.28
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• pp.123-153
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• 2011

In Asia, when cotton and cotton fabrics cultivated and produced in India of Southern Asia had spread to the whole Asia area by land and by sea, the Cotton Road and cotton fabric cultural area could be formed. In Korea, the traditional cotton (Gossypium arboreum) brought by Moon Ik-Jeom in 1363 was cultivated and then the Upland cotton (Gossypium hirsutum) brought via Japan could be produced from 1904. Especially, Gwangju/Jeonnam was the most active place in producing traditional cotton, and eventually became the center of cotton cultivation and fabric production after bringing in Upland cotton. In order to collect and record the cotton cultural resources in the broad area, the Cultural Resources Set, classified its component parts should be made first and then the collecting objects should be investigated. The collecting areas are selected based on the spreading paths and the regional significance of cotton. Since its difficulty of collecting the relevant resources from all of the places in Asia, it should be planned to share the resources through exchanges and cooperation among private, institution and organization. The relevant experts from the various fields should participate in the interdisciplinary researches which are necessary for collecting and recording of wide area cultural resources. Considering the collecting limitation of genuine relics, the digital archives should be established and then offered through a web site that everyone can use them freely by remote. It also needs to plan to display on and off-line for users to perceive the similarity, difference and interconnections of the resources with ease.

• The Korean Journal of Archival Studies
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• no.53
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• pp.79-117
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• 2017

Personal records have both general characteristics as "records" and unique characteristics granted by the context of "personal." This study was conceived by a need to focus on those unique characteristics of personal records and examine them specifically to determine various methods for personal records management. In an effort to identify the characteristics of personal records, the study made an attempt at two different approaches. First, it examined the unique characteristics of personal records that were approachable in the production context of personal records and the process of records management with a focus on the ISO 15489: 2016 standard, which offers the most fundamental principles of records management, and the literature researches on personal records. It then reviewed theories related to "personality," one of man's unique traits, and its applicability to personal records management. In addition, the investigator examined personal characteristics with a focus on personality in the group of actual personal records housed at records management agencies in the nation and checked their influences on records management. The unique characteristics of personal records should be the base of understanding of and strategies for objects to be collected in the documentation activities. That first requires efforts to discover the characteristics of personal records across diverse dimensions, and it should be employed as the core of documentation strategies for personal records.

• The Bulletin of The Korean Astronomical Society
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• v.35 no.2
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• pp.84.1-84.1
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• 2010

Globular clusters (GCs) are known to be one of the oldest objects in the Milky Way. Therefore the dynamical informations of GCs are very important to understand the formation and evolution of our Galaxy. Motion of GCs in the halo of Galaxy can be traced by radial velocities of individual stars and proper motions of GCs. Measuring the radial velocities of stars in GCs has been challenging for decades because the brightness of stars (even for the brightest stars) in GCs are too faint (V>14) to measure the radial velocities. The available large telescopes (D>4m) enable us to observe the spectra of stars in the red giant branch of GCs, and it is now more plausible to measure the radial velocities of stars in GCs. On the contrary it is still very difficult to measure the sky-projected two-dimensional motion of GCs in Galaxy even with the large telescopes because the distance to GCs is quite large (~10kpc) compared to the spatial resolution of present-day large ground-based telescopes. Instruments on-board Hubble Space Telescope are ideal to study the proper motion of GCs thanks to their extremely high spatial resolution (~0.05arcsec). We report a study of proper motion of NGC 104, one of the most metal-rich Milky Way GCs, based-on archival images of NGC 104 observed using HST/ACS. Using the stars in Small Magellanic Cloud as reference coordinate, we are able to measure the proper motions of individual stars in NGC 104 with a high precision. We discuss the internal dynamics of stars in NGC 104 by comparing proper motion results based-on shorter (<1yr) and longer (~7yrs) time durations.