A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy

J.E. Rhoads; S. Malhotra; D. Stern; M. Dickinson; N. Pirzkal; H. Spinrad; N. Reddy; N. Hathi; N. Grogin; A. Koekemoer; M.A. Peth; S. Cohen; Z. Zheng; T. Budavári; I. Ferreras; J.P. Gardner; C. Gronwall; Z. Haiman; M. Kümmel; Gerhardt Meurer; L. Moustakas; N. Panagia; A. Pasquali; K. Sahu; S. Di Serego Alighieri; R. Somerville; A. Straughn; J. Walsh; R. Windhorst; C. Xu; H. Yan

doi:10.1088/0004-637X/773/1/32

A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy

J.E. Rhoads, S. Malhotra, D. Stern, M. Dickinson, N. Pirzkal, H. Spinrad, N. Reddy, N. Hathi, N. Grogin, A. Koekemoer, M.A. Peth, S. Cohen, Z. Zheng, T. Budavári, I. Ferreras, J.P. Gardner, C. Gronwall, Z. Haiman, M. Kümmel, Gerhardt MeurerL. Moustakas, N. Panagia, A. Pasquali, K. Sahu, S. Di Serego Alighieri, R. Somerville, A. Straughn, J. Walsh, R. Windhorst, C. Xu, H. Yan

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Abstract

We present observations of a luminous galaxy at z = 6.573 - the end of the reionization epoch - which has been spectroscopically confirmed twice. The first spectroscopic confirmation comes from slitless Hubble Space Telescope Advanced Camera for Surveys grism spectra from the PEARS survey (Probing Evolution And Reionization Spectroscopically), which show a dramatic continuum break in the spectrum at rest frame 1216 Å. The second confirmation is done with Keck + DEIMOS. The continuum is not clearly detected with ground-based spectra, but high wavelength resolution enables the Lyα emission line profile to be determined. We compare the line profile to composite line profiles at z = 4.5. The Lyα line profile shows no signature of a damping wing attenuation, confirming that the intergalactic gas is ionized at z = 6.57. Spectra of Lyman breaks at yet higher redshifts will be possible using comparably deep observations with IR-sensitive grisms, even at redshifts where Lyα is too attenuated by the neutral intergalactic medium to be detectable using traditional spectroscopy from the ground. © 2013. The American Astronomical Society. All rights reserved.

Original language	English
Pages (from-to)	7pp
Journal	The Astrophysical Journal
Volume	773
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/773/1/32
Publication status	Published - 2013

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Rhoads, J. E., Malhotra, S., Stern, D., Dickinson, M., Pirzkal, N., Spinrad, H., Reddy, N., Hathi, N., Grogin, N., Koekemoer, A., Peth, M. A., Cohen, S., Zheng, Z., Budavári, T., Ferreras, I., Gardner, J. P., Gronwall, C., Haiman, Z., Kümmel, M., ... Yan, H. (2013). A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy. The Astrophysical Journal, 773(1), 7pp. https://doi.org/10.1088/0004-637X/773/1/32

@article{cdd7594624f443de8c10dfed8ffd8b4e,

title = "A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy",

abstract = "We present observations of a luminous galaxy at z = 6.573 - the end of the reionization epoch - which has been spectroscopically confirmed twice. The first spectroscopic confirmation comes from slitless Hubble Space Telescope Advanced Camera for Surveys grism spectra from the PEARS survey (Probing Evolution And Reionization Spectroscopically), which show a dramatic continuum break in the spectrum at rest frame 1216 {\AA}. The second confirmation is done with Keck + DEIMOS. The continuum is not clearly detected with ground-based spectra, but high wavelength resolution enables the Lyα emission line profile to be determined. We compare the line profile to composite line profiles at z = 4.5. The Lyα line profile shows no signature of a damping wing attenuation, confirming that the intergalactic gas is ionized at z = 6.57. Spectra of Lyman breaks at yet higher redshifts will be possible using comparably deep observations with IR-sensitive grisms, even at redshifts where Lyα is too attenuated by the neutral intergalactic medium to be detectable using traditional spectroscopy from the ground. {\textcopyright} 2013. The American Astronomical Society. All rights reserved.",

author = "J.E. Rhoads and S. Malhotra and D. Stern and M. Dickinson and N. Pirzkal and H. Spinrad and N. Reddy and N. Hathi and N. Grogin and A. Koekemoer and M.A. Peth and S. Cohen and Z. Zheng and T. Budav{\'a}ri and I. Ferreras and J.P. Gardner and C. Gronwall and Z. Haiman and M. K{\"u}mmel and Gerhardt Meurer and L. Moustakas and N. Panagia and A. Pasquali and K. Sahu and {Di Serego Alighieri}, S. and R. Somerville and A. Straughn and J. Walsh and R. Windhorst and C. Xu and H. Yan",

year = "2013",

doi = "10.1088/0004-637X/773/1/32",

language = "English",

volume = "773",

pages = "7pp",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing",

number = "1",

}

Rhoads, JE, Malhotra, S, Stern, D, Dickinson, M, Pirzkal, N, Spinrad, H, Reddy, N, Hathi, N, Grogin, N, Koekemoer, A, Peth, MA, Cohen, S, Zheng, Z, Budavári, T, Ferreras, I, Gardner, JP, Gronwall, C, Haiman, Z, Kümmel, M, Meurer, G, Moustakas, L, Panagia, N, Pasquali, A, Sahu, K, Di Serego Alighieri, S, Somerville, R, Straughn, A, Walsh, J, Windhorst, R, Xu, C & Yan, H 2013, 'A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy', The Astrophysical Journal, vol. 773, no. 1, pp. 7pp. https://doi.org/10.1088/0004-637X/773/1/32

TY - JOUR

T1 - A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy

AU - Rhoads, J.E.

AU - Malhotra, S.

AU - Stern, D.

AU - Dickinson, M.

AU - Pirzkal, N.

AU - Spinrad, H.

AU - Reddy, N.

AU - Hathi, N.

AU - Grogin, N.

AU - Koekemoer, A.

AU - Peth, M.A.

AU - Cohen, S.

AU - Zheng, Z.

AU - Budavári, T.

AU - Ferreras, I.

AU - Gardner, J.P.

AU - Gronwall, C.

AU - Haiman, Z.

AU - Kümmel, M.

AU - Meurer, Gerhardt

AU - Moustakas, L.

AU - Panagia, N.

AU - Pasquali, A.

AU - Sahu, K.

AU - Di Serego Alighieri, S.

AU - Somerville, R.

AU - Straughn, A.

AU - Walsh, J.

AU - Windhorst, R.

AU - Xu, C.

AU - Yan, H.

PY - 2013

Y1 - 2013

N2 - We present observations of a luminous galaxy at z = 6.573 - the end of the reionization epoch - which has been spectroscopically confirmed twice. The first spectroscopic confirmation comes from slitless Hubble Space Telescope Advanced Camera for Surveys grism spectra from the PEARS survey (Probing Evolution And Reionization Spectroscopically), which show a dramatic continuum break in the spectrum at rest frame 1216 Å. The second confirmation is done with Keck + DEIMOS. The continuum is not clearly detected with ground-based spectra, but high wavelength resolution enables the Lyα emission line profile to be determined. We compare the line profile to composite line profiles at z = 4.5. The Lyα line profile shows no signature of a damping wing attenuation, confirming that the intergalactic gas is ionized at z = 6.57. Spectra of Lyman breaks at yet higher redshifts will be possible using comparably deep observations with IR-sensitive grisms, even at redshifts where Lyα is too attenuated by the neutral intergalactic medium to be detectable using traditional spectroscopy from the ground. © 2013. The American Astronomical Society. All rights reserved.

AB - We present observations of a luminous galaxy at z = 6.573 - the end of the reionization epoch - which has been spectroscopically confirmed twice. The first spectroscopic confirmation comes from slitless Hubble Space Telescope Advanced Camera for Surveys grism spectra from the PEARS survey (Probing Evolution And Reionization Spectroscopically), which show a dramatic continuum break in the spectrum at rest frame 1216 Å. The second confirmation is done with Keck + DEIMOS. The continuum is not clearly detected with ground-based spectra, but high wavelength resolution enables the Lyα emission line profile to be determined. We compare the line profile to composite line profiles at z = 4.5. The Lyα line profile shows no signature of a damping wing attenuation, confirming that the intergalactic gas is ionized at z = 6.57. Spectra of Lyman breaks at yet higher redshifts will be possible using comparably deep observations with IR-sensitive grisms, even at redshifts where Lyα is too attenuated by the neutral intergalactic medium to be detectable using traditional spectroscopy from the ground. © 2013. The American Astronomical Society. All rights reserved.

U2 - 10.1088/0004-637X/773/1/32

DO - 10.1088/0004-637X/773/1/32

M3 - Article

SN - 0004-637X

VL - 773

SP - 7pp

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1

ER -

A Lyman break galaxy in the epoch of reionization from Hubble Space Telescope grism spectroscopy

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