halo

Definitions

  • WordNet 3.6
    • n halo an indication of radiant light drawn around the head of a saint
    • n halo a circle of light around the sun or moon
    • n halo a toroidal shape "a ring of ships in the harbor","a halo of smoke"
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Webster's Revised Unabridged Dictionary
    • Halo A circle of light; especially, the bright ring represented in painting as surrounding the heads of saints and other holy persons; a glory; a nimbus.
    • Halo A colored circle around a nipple; an areola.
    • Halo A luminous circle, usually prismatically colored, round the sun or moon, and supposed to be caused by the refraction of light through crystals of ice in the atmosphere. Connected with halos there are often white bands, crosses, or arches, resulting from the same atmospheric conditions.
    • Halo An ideal glory investing, or affecting one's perception of, an object.
    • v. t. & i Halo To form, or surround with, a halo; to encircle with, or as with, a halo. "The fire
      That haloed round his saintly brow."
    • ***
Century Dictionary and Cyclopedia
    • n halo A luminous circle, either white or colored, seen round the sun or moon, and commonly of 22° or of 46° radius, the definite radii depending on the definite angles of ice-crystals. Sometimes one of these only is seen, and sometimes both appear at the same time. Halos are due to the refraction of light as it passes through minute ice-needles in the atmosphere. They are frequently accompanied by supernumerary circles, parhelia or mock suns, paraselenæ or mock moons, and variously arranged white bands, crosses, or arcs. All of these phenomena are the result of the refraction, reflection, and diffraction of light when it falls upon crystals of ice suspended in the atmosphere. Halos and their attendant phenomena are more frequent in winter than in summer, and are more commonly observed in the arctic regions than in warmer climates.
    • n halo A circle of light, as the nimbus surrounding the head of a saint. See nimbus.
    • n halo A brownish circle round the nipple; an areola.
    • n halo Pl. halones (hal′ ō˙-nēz). In ornithology, certain chiefly concentric rings of color in the yolk of an egg: an optical appearance due to the deposition of the yolk in successive layers or strata.
    • n halo Figuratively, an ideal glow or glory investing an object as viewed through the medium of feeling or sentiment.
    • halo To form a halo.
    • halo To surround with a halo.
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Chambers's Twentieth Century Dictionary
    • n Halo hā′lō a luminous circle round the sun or moon, due to the presence of ice-crystals in the air:
    • v.t Halo to surround with a halo
    • n Halo hā′lō (paint.) the bright ring round the heads of saints, hence any ideal or sentimental glory attaching to a thing
    • ***

Quotations

  • Irving Layton
    Irving Layton
    “Conscience: self-esteem with a halo.”
  • H.G. Wells
    H.G.%20Wells
    “Moral indignation is jealousy with a halo.”
  • Henry David Thoreau
    Henry%20David%20Thoreau
    “The really efficient laborer will be found not to crowd his day with work, but will saunter to his task surrounded by a wide halo of ease and leisure.”

Etymology

Webster's Revised Unabridged Dictionary
L. halos, acc. halo, Gr. "a`lws a thrashing floor, also (from its round shape) the disk of the sun or moon, and later a halo round it; cf. Gr. e'ily`ein to enfold, 'ely`ein to roll round, L. volvere, and E. voluble,
Chambers's Twentieth Century Dictionary
L. halos—Gr. halōs, threshing-floor.

Usage

In literature:

Around her saintly face there seemed to circle a halo of glory.
"The Deacon of Dobbinsville" by John A. Morrison
A halo had come over them.
"Quiet Talks on Service" by S. D. Gordon
If a saint has to come down and skipper the brutes we have to ship as sailormen nowadays, he'd wear out his halo flinging it at them.
"A Master of Fortune" by Cutcliffe Hyne
She dwelt in a halo of glory, half wishing to descend from it, and perhaps feeling curious to know what a fall was like.
"The Man Who Laughs" by Victor Hugo
The poet's love clung to Anne like an intangible perfume, and a halo of romance encircled her red head.
"The Purple Heights" by Marie Conway Oemler
His keen eye saw the little halo of self-satisfaction that hovered above Jock McChesney's head.
"Personality Plus" by Edna Ferber
The ages have softened all its sharp jagged edges with a halo of glory.
"Quiet Talks about Jesus" by S. D. Gordon
In the kitchen, as she bent over the kettle and the fire, each object was surrounded by a sort of halo, like the moon in damp weather.
"The Price of Love" by Arnold Bennett
We have a halo about Paul's head; and rightly, too.
"Quiet Talks on Prayer" by S. D. (Samuel Dickey) Gordon
In both cases the letters are surrounded with a halo, the sun-rays, symbolical of the sun-deity to whom they refer.
"The Freethinker's Text Book, Part II." by Annie Besant
The spindrift of fine ice had, I think, defined this halo.
"Hills and the Sea" by H. Belloc
The joy of her home-coming seemed to halo them all.
"The Testing of Diana Mallory" by Mrs. Humphry Ward
That halo of pure devotion, which makes a Madonna out of so many a poor and ignorant woman, can never touch his brow.
"Women and the Alphabet" by Thomas Wentworth Higginson
Cheeks had she as red as the Damascus rose, and a halo encircled her like that of the moon.
"Continental Monthly, Vol. I. February, 1862, No. II." by Various
There, in the highway beside the car, the mist of her veil like a halo about her, Olivia stood alone.
"Romance Island" by Zona Gale
One night the Chair was occupied by the Senior Officer, surrounded by his staff, in a halo of cigarette smoke.
"The Siege of Kimberley" by T. Phelan
As he walked, the halo of the moon seemed to widen until it embraced a quarter of the heavens.
"Sir Mortimer" by Mary Johnston
In such an atmosphere Julie had almost the halo of saintliness.
"Rousseau" by John Morley
As I turned away I felt the strong ray of sunshine which fell upon her grave, and rested there a halo and a promise!
"The World As I Have Found It" by Mary L. Day Arms
As he passed in his long brown cloak, the swaying light encircled his white beard and hair with a fluffy halo.
"A Gentleman Vagabond and Some Others" by F. Hopkinson Smith
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In poetry:

Not with the haloed saints would Heaven be
For such as I;
Who have not reached to their serenity
So sweet and high.
"Heaven" by Virna Sheard
We see no halo round his brow
Till love its own recalls,
And, like a leaf that quits the bough,
The mortal vesture falls.
"A Memorial tribute" by Oliver Wendell Holmes
Till starting from his sandy bed,
The wayworn wanderer looks to see
The halo of an angel's head
Shine through the tamarisk-tree.
"My Thanks," by John Greenleaf Whittier
The splendor of the western skies
Lay in a halo on her hair.
I gazed with worship in her eyes,
And deemed her true and knew her fair.
"Long Ago" by Ella Wheeler Wilcox
Will my heavenly wings be splendid
Will they sparkle like the dew?
Will they be rhinestones and pendants
In my halo all shiny and new?
"Hopeful" by Amelia Wire Holmes Aaron
He fights, and for his fireside's sake;
He fights for clothing and for bread:
The lances of his foemen make
A steely halo round his head.
"Delicatessen" by Alfred Joyce Kilmer

In news:

"Halo 4" is on its way.
Yarbrough announces he's a Halo.
Lighthouse Bay wins Smart Halo by nose.
'Halo 4' Is A Beautiful, Tragic Love Story .
Halo 4 brings us the most emotionally charged story we've encountered in the long-running video game franchise.
Halo 4 is a game that gets right down to business.
A Way to Make Sense of Halo's Story.
Moreover, the woman at the counter also maximized her use of the Halo Effect.
An HVAC technician who came to my home to repair our furnace maximized his Halo Effect simply by being observant and making a suggestion at the appropriate time.
Allen Rowand, a sound engineer, sound designer and consultant with ten years of technical experience in the Broadway theatre sound industry, has joined Metric Halo.
Rowand, who has worked for Masque Sound and PRG, has been a beta tester for Metric Halo for five years.
Scientists chart dark matter halo that binds Milky Way.
Scientists chart dark matter halo that binds Milky Way .
Winnipeg Free Press > FP News Features > Justin Bieber, Nick Cannon, others honour teen volunteers at Nickelodeon 's HALO Awards.
'Halo 4' And The Impossible Quest For Novelty And Wonder.
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In science:

This transition in the dark matter halo is particularly necessary for the most massive halo we consider, NFW halos of smaller mass intersect the ΛCDM flow at very high redshifts (ztr ≫ 15).
Entropy Evolution in Galaxy Groups and Clusters; A Comparison of External and Internal Heating
The triaxial halo models are characterized by the halo pattern speed Ωp and the ratio of the tangential to radial acceleration of an embedded test particle.
On the Spiral Structure of NGC 2915 and Dark Matter
The halo flattening is thus totally unconstrained by our models and we adopt c ≡ a for all halo models.
On the Spiral Structure of NGC 2915 and Dark Matter
J is the angular momentum inside a sphere of radius R (we neglect in this order of magnitude calculation the small triaxiality of the halo), containing a mass M , and V = pGM/R is the circular velocity imposed by the halo at radius R .
On the Spiral Structure of NGC 2915 and Dark Matter
As stated, our estimate of J relies on the absence of net internal motions in the halo, which could sizably contribute to the halo angular momentum (although this need not be the case). A similar issue has been raised for stellar bars.
On the Spiral Structure of NGC 2915 and Dark Matter
For our heavy disk models, we also assumed a non-responsive spherically symmetric halo, whereas the disk mass is comparable to the halo mass within its radius.
On the Spiral Structure of NGC 2915 and Dark Matter
We may study the matter distributions directly or by looking at the distribution of halos after applying group finding algorithms to identify virialized “halos” in N body simulations.
The Probability Distribution Function of Light in the Universe: Results from Hydrodynamic Simulations
An analysis of the relative optical depth shows that a halo lens (whose mass is estimated to lie in the range 0.009-32 M⊙ ) is more likely than a stellar lens (with mass in this case expected in the range 0.02-3.6 M⊙) provided that the halo mass fraction in form of compact ob jects is at least around 15%.
Microlensing towards M31: candidates and perspectives
In this section, we consider the predicted rearrangement of matter in the cores of pure CDM halos at low redshift, and then discuss why the stars in giant galaxies might be expected to remain concentrated in the centers of the halos as observations require.
Early Formation and Late Merging of the Giant Galaxies
The shallowest inner slope measured is α ∼ −1, with an average over the simulated haloes of α ∼ −1.2 (at the innermost reliably resolved radius for galaxy mass haloes).
Halo Mass Profiles and Low Surface Brightness Galaxies Rotation Curves
The steepest slope expected for a realistic ISO halo (i.e. consistent with the smallest value RC ∼ 0.5 kpc measured in real LSB galaxies; see results in de Blok & Bosma 2002; McGaugh et al. 2001; Swaters et al. 2003) is α ∼ −0.8, with the large ma jority of ISO haloes having slopes less steep than that.
Halo Mass Profiles and Low Surface Brightness Galaxies Rotation Curves
The most surprising outcome though is that of this sample of random ISO haloes almost 60 per cent match the H04 CDM criteria. A comparison of the distribution of slopes in this CDM-compatible sample of haloes with the total distribution shows that there has been no selection against shallow slopes (Fig. 9).
Halo Mass Profiles and Low Surface Brightness Galaxies Rotation Curves
In summary, a comparison of the circular velocity profiles of CDM haloes with rotation curves of LSB galaxies indicates that the shapes and inferred central densities of most LSB galaxies are mostly inconsistent with those of simulated haloes within the limitations imposed by observational error.
Halo Mass Profiles and Low Surface Brightness Galaxies Rotation Curves
Sheth et al. (2001, SMT01 hereafter) found that an ellipsoidal collapse model suggests a moving barrier for defining halos, which produces a first-crossing distribution, or halo mass function, that better matches N-body simulations.
On Random Walks with a General Moving Barrier
We have presented a simple family of halo models useful for the study of dark matter haloes.
Simple Models for the Distribution of Dark Matter
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