@article{gobat_wfc3_2013,
	title = {{WFC3} {GRISM} {Confirmation} of the {Distant} {Cluster} {Cl} {J1449}+0856 at langzrang = 2.00: {Quiescent} and {Star}-forming {Galaxy} {Populations}},
	volume = {776},
	issn = {0004-637X},
	shorttitle = {{WFC3} {GRISM} {Confirmation} of the {Distant} {Cluster} {Cl} {J1449}+0856 at langzrang = 2.00},
	url = {http://adsabs.harvard.edu/abs/2013ApJ...776....9G},
	doi = {10.1088/0004-637X/776/1/9},
	abstract = {We present deep Hubble Space Telescope Wide Field Camera 3 (HST/WFC3) 
slitless spectroscopic observations of the distant cluster Cl
J1449+0856. These cover a single pointing with 18 orbits of G141
spectroscopy and F140W imaging, allowing us to derive secure redshifts
down to M 140 {\textasciitilde} 25.5 AB and 3σ line fluxes of {\textasciitilde}5
× 10-18 erg s-1
cm-2. In particular, we were able to spectroscopically
confirm 12 early-type galaxies (ETGs) in the field up to z {\textasciitilde} 3, 6 of
which are in the cluster core, which represents the first direct
spectroscopic confirmation of quiescent galaxies in a z = 2 cluster
environment. With 140 redshifts in a {\textasciitilde}6 arcmin2 field, we can
trace the spatial and redshift galaxy distribution in the cluster core
and background field. We find two strong peaks at z = 2.00 and z = 2.07,
where only one was seen in our previously published ground-based data.
Due to the spectroscopic confirmation of the cluster ETGs, we can now
reevaluate the redshift of Cl J1449+0856 at z = 2.00, rather than z =
2.07, with the background overdensity being revealed to be sparse and
"sheet"-like. This presents an interesting case of chance alignment of
two close yet unrelated structures, each one preferentially selected by
different observing strategies. With 6 quiescent or early-type
spectroscopic members and 20 star-forming ones, Cl J1449+0856 is now
reliably confirmed to be at z = 2.00. The identified members can now
allow for a detailed study of galaxy properties in the densest
environment at z = 2.},
	journal = {The Astrophysical Journal},
	author = {Gobat, R. and Strazzullo, V. and Daddi, E. and Onodera, M. and Carollo, M. and Renzini, A. and Finoguenov, A. and Cimatti, A. and Scarlata, C. and Arimoto, N.},
	month = oct,
	year = {2013},
	keywords = {galaxies: clusters: individual: Cl J1449+0856, galaxies: high-redshift},
	pages = {9},
}

{"_id":"3b9NZ6BzWcHWpTxPG","bibbaseid":"gobat-strazzullo-daddi-onodera-carollo-renzini-finoguenov-cimatti-etal-wfc3grismconfirmationofthedistantclusterclj14490856atlangzrang200quiescentandstarforminggalaxypopulations-2013","author_short":["Gobat, R.","Strazzullo, V.","Daddi, E.","Onodera, M.","Carollo, M.","Renzini, A.","Finoguenov, A.","Cimatti, A.","Scarlata, C.","Arimoto, N."],"bibdata":{"bibtype":"article","type":"article","title":"WFC3 GRISM Confirmation of the Distant Cluster Cl J1449+0856 at langzrang = 2.00: Quiescent and Star-forming Galaxy Populations","volume":"776","issn":"0004-637X","shorttitle":"WFC3 GRISM Confirmation of the Distant Cluster Cl J1449+0856 at langzrang = 2.00","url":"http://adsabs.harvard.edu/abs/2013ApJ...776....9G","doi":"10.1088/0004-637X/776/1/9","abstract":"We present deep Hubble Space Telescope Wide Field Camera 3 (HST/WFC3) slitless spectroscopic observations of the distant cluster Cl J1449+0856. These cover a single pointing with 18 orbits of G141 spectroscopy and F140W imaging, allowing us to derive secure redshifts down to M 140 \\textasciitilde 25.5 AB and 3σ line fluxes of \\textasciitilde5 × 10-18 erg s-1 cm-2. In particular, we were able to spectroscopically confirm 12 early-type galaxies (ETGs) in the field up to z \\textasciitilde 3, 6 of which are in the cluster core, which represents the first direct spectroscopic confirmation of quiescent galaxies in a z = 2 cluster environment. With 140 redshifts in a \\textasciitilde6 arcmin2 field, we can trace the spatial and redshift galaxy distribution in the cluster core and background field. We find two strong peaks at z = 2.00 and z = 2.07, where only one was seen in our previously published ground-based data. Due to the spectroscopic confirmation of the cluster ETGs, we can now reevaluate the redshift of Cl J1449+0856 at z = 2.00, rather than z = 2.07, with the background overdensity being revealed to be sparse and \"sheet\"-like. This presents an interesting case of chance alignment of two close yet unrelated structures, each one preferentially selected by different observing strategies. With 6 quiescent or early-type spectroscopic members and 20 star-forming ones, Cl J1449+0856 is now reliably confirmed to be at z = 2.00. The identified members can now allow for a detailed study of galaxy properties in the densest environment at z = 2.","journal":"The Astrophysical Journal","author":[{"propositions":[],"lastnames":["Gobat"],"firstnames":["R."],"suffixes":[]},{"propositions":[],"lastnames":["Strazzullo"],"firstnames":["V."],"suffixes":[]},{"propositions":[],"lastnames":["Daddi"],"firstnames":["E."],"suffixes":[]},{"propositions":[],"lastnames":["Onodera"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Carollo"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Renzini"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Finoguenov"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Cimatti"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Scarlata"],"firstnames":["C."],"suffixes":[]},{"propositions":[],"lastnames":["Arimoto"],"firstnames":["N."],"suffixes":[]}],"month":"October","year":"2013","keywords":"galaxies: clusters: individual: Cl J1449+0856, galaxies: high-redshift","pages":"9","bibtex":"@article{gobat_wfc3_2013,\n\ttitle = {{WFC3} {GRISM} {Confirmation} of the {Distant} {Cluster} {Cl} {J1449}+0856 at langzrang = 2.00: {Quiescent} and {Star}-forming {Galaxy} {Populations}},\n\tvolume = {776},\n\tissn = {0004-637X},\n\tshorttitle = {{WFC3} {GRISM} {Confirmation} of the {Distant} {Cluster} {Cl} {J1449}+0856 at langzrang = 2.00},\n\turl = {http://adsabs.harvard.edu/abs/2013ApJ...776....9G},\n\tdoi = {10.1088/0004-637X/776/1/9},\n\tabstract = {We present deep Hubble Space Telescope Wide Field Camera 3 (HST/WFC3) \nslitless spectroscopic observations of the distant cluster Cl\nJ1449+0856. These cover a single pointing with 18 orbits of G141\nspectroscopy and F140W imaging, allowing us to derive secure redshifts\ndown to M 140 {\\textasciitilde} 25.5 AB and 3σ line fluxes of {\\textasciitilde}5\n× 10-18 erg s-1\ncm-2. In particular, we were able to spectroscopically\nconfirm 12 early-type galaxies (ETGs) in the field up to z {\\textasciitilde} 3, 6 of\nwhich are in the cluster core, which represents the first direct\nspectroscopic confirmation of quiescent galaxies in a z = 2 cluster\nenvironment. With 140 redshifts in a {\\textasciitilde}6 arcmin2 field, we can\ntrace the spatial and redshift galaxy distribution in the cluster core\nand background field. We find two strong peaks at z = 2.00 and z = 2.07,\nwhere only one was seen in our previously published ground-based data.\nDue to the spectroscopic confirmation of the cluster ETGs, we can now\nreevaluate the redshift of Cl J1449+0856 at z = 2.00, rather than z =\n2.07, with the background overdensity being revealed to be sparse and\n\"sheet\"-like. This presents an interesting case of chance alignment of\ntwo close yet unrelated structures, each one preferentially selected by\ndifferent observing strategies. With 6 quiescent or early-type\nspectroscopic members and 20 star-forming ones, Cl J1449+0856 is now\nreliably confirmed to be at z = 2.00. The identified members can now\nallow for a detailed study of galaxy properties in the densest\nenvironment at z = 2.},\n\tjournal = {The Astrophysical Journal},\n\tauthor = {Gobat, R. and Strazzullo, V. and Daddi, E. and Onodera, M. and Carollo, M. and Renzini, A. and Finoguenov, A. and Cimatti, A. and Scarlata, C. and Arimoto, N.},\n\tmonth = oct,\n\tyear = {2013},\n\tkeywords = {galaxies: clusters: individual: Cl J1449+0856, galaxies: high-redshift},\n\tpages = {9},\n}\n\n","author_short":["Gobat, R.","Strazzullo, V.","Daddi, E.","Onodera, M.","Carollo, M.","Renzini, A.","Finoguenov, A.","Cimatti, A.","Scarlata, C.","Arimoto, N."],"key":"gobat_wfc3_2013","id":"gobat_wfc3_2013","bibbaseid":"gobat-strazzullo-daddi-onodera-carollo-renzini-finoguenov-cimatti-etal-wfc3grismconfirmationofthedistantclusterclj14490856atlangzrang200quiescentandstarforminggalaxypopulations-2013","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2013ApJ...776....9G"},"keyword":["galaxies: clusters: individual: Cl J1449+0856","galaxies: high-redshift"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["galaxies: clusters: individual: cl j1449+0856","galaxies: high-redshift"],"search_terms":["wfc3","grism","confirmation","distant","cluster","j1449","0856","langzrang","quiescent","star","forming","galaxy","populations","gobat","strazzullo","daddi","onodera","carollo","renzini","finoguenov","cimatti","scarlata","arimoto"],"title":"WFC3 GRISM Confirmation of the Distant Cluster Cl J1449+0856 at langzrang = 2.00: Quiescent and Star-forming Galaxy Populations","year":2013}