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相关论文: Spitzer observations of extended Lyman-alpha Cloud…

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Using Spitzer Space Telescope IRAC (3.6-8um) and MIPS (24um) imaging, as well as Hubble Space Telescope optical observations, we identify the IRAC counterparts of the luminous power sources residing within the two largest and brightest…

天体物理学 · 物理学 2011-02-11 J. E. Geach , Ian Smail , S. C. Chapman , D. M. Alexander , A. W. Blain , J. P. Stott , R. J. Ivison

Ly-alpha blobs (LABs) offer insight into the complex interface between galaxies and their circumgalactic medium. Whilst some LABs have been found to contain luminous star-forming galaxies and active galactic nuclei that could potentially…

We describe the spectral energy distributions (SEDs) of Lyman Break Galaxies (LBGs) at z~3 using deep mid-infrared and optical observations of the Extended Groth Strip, obtained with IRAC and MIPS on board Spitzer and from the ground,…

We present observations of a giant Lyman-alpha blob in the SSA22 proto-cluster at z=3.1, SSA22-LAB1, taken with the Atacama Large Millimeter/submillimeter Array (ALMA). Dust continuum, along with [C II]158um, and CO(4-3) line emission have…

We report observations of Lyman Alpha Blob 1 (LAB1) in the SSA 22 protocluster region (z=3.09) with the integral-field spectrograph SAURON. We increased the signal-to-noise in the spectra by more than a factor three compared to our previous…

宇宙学与河外天体物理 · 物理学 2015-05-14 A. Weijmans , R. G. Bower , J. E. Geach , A. M. Swinbank , R. J. Wilman , P. T. de Zeeuw , S. L. Morris

Using a combination of deep MID-IR observations obtained by IRAC, MIPS and IRS on board Spitzer we investigate the MID-IR properties of Lyman Break Galaxies (LBGs) at z~3, establish a better understanding of their nature and attempt a…

天体物理学 · 物理学 2009-11-13 Georgios E. Magdis , Dimitra Rigopoulou

We present the results from a submm survey of a sample of 23 giant Lya emitting nebulae in the overdensity at z=3.09 in the SA22 field. These objects, which have become known as Lya Blobs (LABs) have a diverse range of morphology and…

天体物理学 · 物理学 2009-11-13 J. E. Geach , Y. Matsuda , Ian Smail , S. C. Chapman , T. Yamada , R. J. Ivison , T. Hayashino , K. Ohta , Y. Shioya , Y. Taniguchi , .

We present the results from a stellar population modeling analysis of a sample of 162 z=4.5, and 14 z=5.7 Lyman alpha emitting galaxies (LAEs) in the Bootes field, using deep Spitzer/IRAC data at 3.6 and 4.5 um from the Spitzer Lyman Alpha…

In this letter we report on the discovery of a z=2.83 Lyman-alpha Blob (LAB) found in our wide field narrow-band survey within the Spitzer First Look Survey region. The blob is extended over at least 95kpc and has a total Lyman-alpha…

天体物理学 · 物理学 2008-11-26 Daniel J. B. Smith , Matt J. Jarvis

In order to constrain the bolometric luminosities, dust properties and molecular gas content of giant Lyman alpha nebulae, the so-called Lyman alpha blobs, we have carried out a study of dust continuum and CO line emission in two…

As part of the In-Orbit Checkout activities for the Spitzer Space Telescope, the IRAC team carried out a deep observation (average integration time ~8 hours) of a field surrounding the bright QSO HS 1700+6416. This field contains several…

We present the results of the extensive narrow-band survey of Ly\alpha\ emission-line objects at z=3.1 in the 1.38 deg^2 area surrounding the high density region of star-forming galaxies at z=3.09 in the SSA22 field, as well as in the 1.04…

宇宙学与河外天体物理 · 物理学 2015-06-04 T. Yamada , Y. Nakamura , Y. Matsuda , T. Hayashino , R. Yamauchi , N. Morimoto , K. Kousai , M. Umemura

We study the stellar population properties of the IRAC-detected $6 \lesssim z \lesssim 10$ galaxy candidates from the Spitzer UltRa Faint SUrvey Program (SURFS UP). Using the Lyman Break selection technique, we find a total of 16 new galaxy…

We present photometric analysis of deep mid-infrared observations obtained by Spitzer/IRAC covering the fields Q1422+2309, Q2233+1341, DSF2237a,b, HDFN, SSA22a,b and B20902+34, giving the number counts and the depths for each field. In a…

天体物理学 · 物理学 2009-11-13 G. E. Magdis , D. Rigopoulou , J. -S. Huang , G. G. Fazio , S. P. Willner , M. L. N. Ashby

Context: Lyman $\alpha$ blobs (LABs) are large-scale radio-quiet Lyman $\alpha$ (Ly$\alpha$) nebula at high-$z$ that occur predominantly in overdense proto-cluster regions. Especially the prototypical SSA22a-LAB1 at $z=3.1$ has become an…

星系天体物理 · 物理学 2020-10-07 Edmund Christian Herenz , Matthew Hayes , Claudia Scarlata

We present new Atacama Large Millimeter/Submillimeter Array (ALMA) 850um continuum observations of the original Lyman-alpha Blob (LAB) in the SSA22 field at z=3.1 (SSA22-LAB01). The ALMA map resolves the previously identified submillimeter…

The intergalactic medium (IGM) is the dominant reservoir of baryons, delineates the large scale structure at low to moderate overdensities, and provides gas from which galaxies form and evolve. Simulations of a Cold Dark Matter (CDM)…

We present Spitzer Space Telescope observations of the z=2.38 lya-emitter over-density associated with galaxy cluster J2143-4423, the largest known structure (110 Mpc) above z=2. We imaged 22 of the 37 known lya-emitters within the…

We present results of a large survey of the mid--IR properties of 248 Lyman Break Galaxies with confirmed spectroscopic redshift using deep Spitzer/IRAC observations in six cosmological fields. We model the Spectral Energy Distributions…

宇宙学与河外天体物理 · 物理学 2015-05-14 G. E. Magdis , D. Rigopoulou , J-S Huang , G. Fazzio

This paper discusses infrared and millimetre-wavelength observations of a Lyman-alpha blob discovered by Smith & Jarvis, a candidate for ionization by the cold accretion scenario discussed in Fardal et al. and Dijkstra et al. We have…

天体物理学 · 物理学 2009-11-13 Daniel J. B. Smith , Matt J. Jarvis , Mark Lacy , Alejo Martínez-Sansigre
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