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quiescent prominence

A long-lived solar prominence that lasts up to several months, changing little in appearance. Quiescent prominences are arch-shaped, several hundred thousand kilometres long, a few ...

quiescent prominence

quiescent prominence   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018

... prominence A long-lived solar prominence that lasts up to several months (i.e. several solar rotations), changing little in appearance. Quiescent prominences are arch-shaped, several hundred thousand kilometres long, a few thousand kilometres thick, and up to 50 000 km high. When seen against the solar disk they appear as darker features called filaments . Quiescent prominences are found to the poleward side of active regions . Over the course of the 11-year sunspot cycle they gradually migrate to higher latitudes, eventually forming a polar crown ...

quiescent prominence

quiescent prominence  

A long-lived solar prominence that lasts up to several months, changing little in appearance. Quiescent prominences are arch-shaped, several hundred thousand kilometres long, a few thousand ...
eruptive prominence

eruptive prominence  

A solar prominence that has previously been quiescent but suddenly starts to ascend at a few hundred kilometres per second, eventually disappearing from view. Eruptive prominences are often visible ...
prominence

prominence  

A cloud-like feature, visible especially in Hα light, located in the Sun's corona but cooler and denser than the corona. Prominences have temperatures of around 10 000 K, typical of the solar ...
Angelo Secchi

Angelo Secchi  

(1818–78)Italianastronomer and priest. He was a pioneer of astronomical photography. By photographing a total solar eclipse in 1860 he, and independently the English scientist Warren De la Rue ...
eruptive prominence

eruptive prominence   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018

...prominence A solar prominence that has previously been quiescent but suddenly starts to ascend at a few hundred kilometres per second, eventually disappearing from view. Eruptive prominences are often visible at the Sun’s limb in association with coronal mass ejections . On the Sun’s disk, the equivalent phenomenon is a disappearing filament...

prominence

prominence   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
108 words
Illustration(s):
1

...prominence A bright cloud of gas projecting from the Sun into space 100 000 km or more. Quiescent prominences last for months, and are held in place by magnetic fields in the Sun's corona. Surge prominences shoot gas into space at speeds of 1 000 kps. Loop prominences are gases falling back to the Sun's surface after a solar flare . Extreme-Ultraviolet Imaging Telescope (EIT) image of a solar prominence, taken on 14 September 1999. Prominences are huge clouds of relatively cool dense plasma suspended in the Sun's corona. The lightest areas seen on the...

prominence

prominence   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018

... A cloud-like feature, visible especially in Ηα ‎ light, located in the Sun’s corona but cooler and denser than the corona. Prominences have temperatures of around 10 000 K, typical of the solar chromosphere, and densities 100 times higher than the corona. They are often seen around the Sun’s limb at total solar eclipses. In Ηα ‎ light they can be seen silhouetted against the Sun’s disk, when they are termed filaments . They are categorized as quiescent prominences or active prominences , according to their behaviour. Active-region prominences...

filament

filament   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018

...against the Sun’s disk in Ηα ‎ light, but at the limb they appear bright and are termed prominences . Quiescent filaments (the equivalent of quiescent prominences , but on the disk) may show gradual changes, but specific portions or threads within the filament can move more quickly, at speeds of a few kilometres per second. Loop filaments (the disk equivalent of loop prominences ) are often associated with large flares. The equivalent of an eruptive prominence is the disappearing filament, sometimes called a disparition brusque , from the French...

Secchi, (Pietro) Angelo

Secchi, (Pietro) Angelo (1818–78)   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018

... priest . He was a pioneer of astronomical photography. By photographing a total solar eclipse in 1860 he, and independently the English scientist Warren De la Rue ( 1815–89 ), settled the controversy over whether prominences belonged to the Sun or the Moon. Secchi also made the first classification of solar prominences into quiescent and eruptive types. He and W. Huggins were the first to approach astronomical spectroscopy systematically. Secchi made the first spectroscopic survey of stars, which yielded a catalogue of over 4000 spectra, published ...

African Independent Churches (South Africa)

African Independent Churches (South Africa)   Reference library

The Encyclopedia of Religion and Nature

Reference type:
Subject Reference
Current Version:
2010
Subject:
Religion, Social sciences
Length:
2,248 words

...to African emancipation through alignment with nationalist movements, “Ethiopians” are now politically quiescent, respectable Christians with middle-class aspirations. They have not attracted much in the way of recent scholarly attention, but the available evidence suggests that they are in decline, with nothing distinctive to offer and unable to recruit replacements for their largely aging membership. A few of their leaders have achieved some prominence by claiming to be spokesmen for AICs in general, but without the support of the Zionist majority. There...

Qadiriyya

Qadiriyya   Reference library

Felicitas M. Becker

Oxford Encyclopedia of the Islamic World: Digital Collection

Reference type:
Subject Reference
Current Version:
2022
Subject:
Religion
Length:
2,833 words

... The Qadiriyya and Decolonization The leaders of these expanding Qadiri congregations in the colonial period were generally politically quiescent and on good terms with government. Their in an Arabicate version of coastal culture enabled them to establish themselves as expatriate intermediaries with British officials given to thinking in terms of racial and cultural...

Shīʿī Islam

Shīʿī Islam   Reference library

The Oxford Encyclopedia of the Islamic World

Reference type:
Subject Reference
Current Version:
2009
Subject:
Religion, Social sciences, Regional and Area Studies
Length:
8,747 words
Illustration(s):
3

...The consolidation of the Ithnā ʿAsharī position was accomplished by Imam Jaʿfar al-Ṣādiq , the sixth Imam of the quiescent Ḥusaynid branch, who expounded his theory of the imamate based on naṣ , the explicit designation of his successor by the previous Imam, and the special knowledge of religion passed down in the family from generation to generation. With the efforts of Jaʿfar, the quiescent line of the Ḥusaynid Imams regained the prominence it had lost after the death of Ḥusayn. Jaʿfar was surrounded by traditionalists who played an important role in...

ʿAtabāt

ʿAtabāt   Reference library

The Oxford Encyclopedia of the Islamic World

Reference type:
Subject Reference
Current Version:
2009
Subject:
Religion, Social sciences, Regional and Area Studies
Length:
3,370 words

...as many claimants to his mantle in Najaf as there were in Qom. Chief among these were Ayatollah ʿAbd al-Hādī Shīrāzī ( d. 1962 ), Ayatollah Muḥsin al-Ḥakīm ( d. 1970 ), and Ayatollah Abū al-Qāsim al-Khuʿi ( d. 1992 ). The Shīʿī ʿulamāʿ of the ʿatabāt had been largely quiescent since the turmoils of the early 1920s, but the changes that followed the overthrow of the Iraqi monarchy in 1958 prompted them to resume comment on political affairs. Thus, in April 1960 Shīrāzī issued a fatwā condemning the Iraqi Communist party, one of the principal...

Martyrdom

Martyrdom   Reference library

B. Todd Lawson and Joseph A. Kéchichian

The Oxford Encyclopedia of Islam and Politics

Reference type:
Subject Reference
Current Version:
2014
Subject:
Religion, Social sciences, Politics
Length:
2,976 words

...(unidentified in the Qurʾān) a martyr or, more accurately, one who was willing to become a martyr. There have been times in the Islamic community when the ideal of martyrdom was “socialized.” Within the larger Sunnī tradition, the personal ethos and ideal of martyrdom became quiescent as a religious motif. Even though Sunnī theologians recognized the power of the idea and even perpetuated the veneration of the early martyrs of Islam—such as Ḥamza ibn ʿAbd al-Muṭṭallib, the original sayyid al-shuhadāʾ (Prince of Martyrs, a title now most familiarly attached...

Martyrdom

Martyrdom   Reference library

The Oxford Encyclopedia of the Islamic World

Reference type:
Subject Reference
Current Version:
2009
Subject:
Religion, Social sciences, Regional and Area Studies
Length:
4,038 words
Illustration(s):
1

...observer of the contemporary scene and its examples of shahādah “martyrdom, testimony.” There have been times even within the Islamic community when the ideal of martyrdom was “socialized.” Within the larger Sunnī tradition, the personal ethos and ideal of martyrdom became quiescent as a religious motif. Even though Sunnī theologians recognized the power of the idea and even perpetuated the veneration of the early martyrs of Islam—such as Ḥamza ibn ʿAbd al-Muṭṭallib , the original sayyid al-shuhadāʿ (Prince of Martyrs, a title now most familiarly...

International Organization and Vulnerable Groups

International Organization and Vulnerable Groups   Reference library

Dennis Dijkzeul and Leon Gordenker

The International Studies Encyclopedia

Reference type:
Subject Reference
Current Version:
2017
Subject:
Social sciences, Politics, Warfare and Defence
Length:
10,942 words

...variability and extremes” (cf. Villagrán de León 2006 :304). These definitions point out that vulnerability is a forward-looking concept that indicates damage potential for people. “Vulnerability is an intrinsic characteristic of a community that is always there even in quiescent times between events […] it is a permanent and dynamic feature that is revealed during an event to an extent that depends on the magnitude of the harmful event” ( Thywissen 2006 :485). As long as disasters were perceived as natural “acts of God” or as technical engineering problems...

Diseases

Diseases   Reference library

Ann G. Carmichael and Garland L. Brinkley

The Oxford Encyclopedia of Economic History

Reference type:
Subject Reference
Current Version:
2005
Subject:
Social sciences, Economics
Length:
8,444 words
Illustration(s):
2

...resulting in the deaths of an estimated 25 to 40 million people worldwide. The virus responsible for the 1918–1919 pandemic also caused demographically significant mortality among young adults rather than the very old or the very young, whom influenza affects more in its quiescent years. In this highly unusual historical instance, a recombination of animal and human influenza strains occurred. However, even in normal influenza epidemics, infection in individuals is accompanied by some temporary loss of cell-mediated immunity, and so population groups...

Abdurrahman Wahid: Scholar-President

Abdurrahman Wahid: Scholar-President   Reference library

John L. Esposito and John O. Voll

Makers of Contemporary Islam

Reference type:
Subject Reference
Current Version:
2022
Subject:
Religion
Length:
8,320 words

... Ali Shariati legitimated his reformist Islam by claiming to appropriate Alid Shiism, the original sociopolitically revolutionary spirit of islam and Ali, its first imam or leader, as distinguished from that of Safavid Shiism, the quiescent, establishment religion of a clergy coopted by imperial rulers. Abdurrahman Wahid also preaches an Islam of social activism. Influenced by liberation theology's notion of “conscientization,” he speaks of the need for Muslims to ...

Fundamentalism and Globalization

Fundamentalism and Globalization   Reference library

Robert A. Denemark

The International Studies Encyclopedia

Reference type:
Subject Reference
Current Version:
2017
Subject:
Social sciences, Politics, Warfare and Defence
Length:
11,792 words

...St. Martin’s, pp. 3–27. Haynes, J. (1999b) Conclusion. In J. Haynes (ed.) Religion, Globalization and Political Culture in the Third World . New York: St. Martin’s, pp. 240–56. Hays, A.G. (1928) Let Freedom Ring . New York: Boni and Liveright. Heilman, S. (1994) Quiescent and Active Fundamentalisms: The Jewish Cases. In M. Marty and R. Appleby (eds.) Accounting for Fundamentalisms . Chicago: University of Chicago Press, pp. 173–96. Heilman, S. , and Friedman, M. (1991) Religious Fundamentalism and Religious Jews: The Case of the Haredim. In...

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